OSDN Git Service

66eea015e1c0373281194b08a24b7cadb75e9de8
[pf3gnuchains/gcc-fork.git] / gcc / ChangeLog
1 2006-03-07  Richard Sandiford  <richard@codesourcery.com>
2
3         * varasm.c (assemble_variable): Fix setting of DECL_IN_TEXT_SECTION.
4
5 2006-03-07  Richard Sandiford  <richard@codesourcery.com>
6
7         * hooks.c (hook_bool_mode_rtx_true): New function.
8         * hooks.h (hook_bool_mode_rtx_true): Declare.
9         * toplev.c (compile_file): Call output_shared_constant_pool.
10         * varasm.c (shared_constant_pool): New variable.
11         (assemble_start_function, assemble_end_function): Remove arguments
12         from call to output_constant_pool.
13         (create_constant_pool): New function, split out from...
14         (init_varasm_status): ...here.
15         (force_const_mem): Choose between the shared and per-function constant
16         pools.  Set current_function_uses_const_pool when reusing old entries
17         as well as when creating new ones.
18         (mark_constant): Ignore data argument.
19         (mark_constants): Remove pool argument.
20         (mark_constant_pool): Likewise.  Use current_function_uses_const_pool
21         to decide whether the function uses a constant pool.
22         (output_constant_pool_contents): New function, split out from...
23         (output_constant_pool): ...here.
24         (output_shared_constant_pool): New function.
25         (init_varasm_once): Initialize shared_constant_pool.
26         * output.h (output_constant_pool): Delete.
27         (output_shared_constant_pool): Declare.
28         * config/s390/s390-protos.h (s390_output_constant_pool): Delete.
29         * config/i386/i386.c (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Override.
30
31 2006-03-06  Nick Clifton  <nickc@redhat.com>
32
33         * config/m32r/m32r.h (OPTIMIZATION_OPTIONS): Remove reference to
34         flag_strength_reduce.
35
36 2006-03-06  Ben Elliston  <bje@au.ibm.com>
37
38         * config.gcc: Add t-dfprules to $tmake_file for i*86-*-linux* and
39         x86_64-*-linux* configurations.
40
41         * config/dfp-bit.h (CMPtype): Typedef to a word mode integer.
42         (LIBGCC2_WORDS_BIG_ENDIAN): Define.
43
44 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
45
46         * tree-ssa-threadupdate.c (rediscover_loops_after_threading):
47         Remove.
48         * basic-block.h: Remove the extern for
49         rediscover_loops_after_threading.
50
51         * cfgloop.c (cancel_loop): Make it static.
52         * cfgloop.h: Remove the prototype for cancel_loop.
53
54         * flow.c (recompute_reg_usage): Make it static.
55         * rtl.h: Remove the prototype for recompute_reg_usage.
56
57         * function.c (use_return_register): Make it static.
58         * function.h: Remove the prototype.
59
60 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
61
62         * recog.c (volatile_mem_p, validate_change_maybe_volatile):
63         Remove.
64         * recog.h: Remove the prototype for
65         validate_change_maybe_volatile.
66
67 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
68
69         * rtlanal.c (replace_reg): Remove.
70         * rtl.h: Remove the prototype for replace_reg.
71
72 2006-03-05  Kazu Hirata  <kazu@codesourcery.com>
73
74         * regclass.c (reg_scan_update): Remove.
75         (reg_scan_mark_refs): Remove the last argument.
76         * rtl.h: Remove the prototype for reg_scan_update.
77
78 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
79
80         * builtins.c, c-pragma.h, c-typeck.c, cgraph.c, cgraphunit.c,
81         combine.c, common.opt, config/dfp-bit.c, config/i386/i386.c,
82         config/m68k/m68k.c, config/m68k/m68k.md, config/mt/mt.c,
83         config/mt/mt.h, config/s390/s390.md, df-core.c, df-problems.c,
84         df-scan.c, df.h, diagnostic.c, expr.c, function.h, gimplify.c,
85         loop-invariant.c, omp-low.c, opts.c, passes.c,
86         rtl-factoring.c, rtlanal.c, struct-equiv.c, tree-cfgcleanup.c,
87         tree-ssa-loop-niter.c, tree-ssa-loop-prefetch.c,
88         tree-ssa-structalias.c, tree-ssa-threadedge.c,
89         tree-ssa-threadupdate.c, tree-vect-patterns.c,
90         tree-vect-transform.c, tree-vectorizer.h, tree-vrp.c,
91         unwind-dw2.c: Fix comment typos.  Follow spelling conventions.
92
93 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
94
95         * dwarf2out.c (dwarf2out_add_library_unit_info): Remove.
96         * dwarf2out.h: Remove the prototype for
97         dwarf2out_add_library_unit_info.
98
99 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
100
101         * tree.c (add_var_to_bind_expr): Remove.
102         * tree.h: Remove the prototype for add_var_to_bind_expr.
103
104 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
105
106         * regclass.c (n_non_fixed_regs): Remove.
107         (init_reg_sets_1, globalize_reg): Remove all uses of
108         n_non_fixed_regs.
109         * hard-reg-set.h: Remove the extern for n_non_fixed_regs.
110
111 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
112
113         * rtlanal.c (insns_safe_to_move_p): Remove.
114         * rtl.h: Remove the prototype for insns_safe_to_move_p.
115
116 2006-03-04  Kazu Hirata  <kazu@codesourcery.com>
117
118         * expmed.c (expand_mult_add): Remove.
119         * expr.h: Remove the prototype for expand_mult_add.
120
121 2006-03-04  Jakub Jelinek  <jakub@redhat.com>
122
123         * unwind-dw2.h (_Unwind_FrameState): Add REG_SAVED_VAL_OFFSET
124         and REG_SAVED_VAL_EXP constants.
125         * unwind-dw2.c (struct _Unwind_Context): Add by_value array.
126         (_Unwind_GetGR, _Unwind_SetGR, _Unwind_GetGRPtr, _Unwind_SetGRPtr):
127         Handle regs stored by value.
128         (_Unwind_SetGRValue, _Unwind_GRByValue): New functions.
129         (execute_cfa_program): Handle DW_CFA_val_offset,
130         DW_CFA_val_offset_sf and DW_CFA_val_expression.
131         (uw_update_context_1): Handle REG_SAVED_REG with regs stored by
132         value specially.  Handle REG_SAVED_VAL_OFFSET and REG_SAVED_VAL_EXP.
133         (uw_install_context_1): Handle target regs stored by value.
134
135 2006-03-03  Daniel Berlin  <dberlin@dberlin.org>
136
137         * tree-sra.c (tree_sra): Return todoflags;
138         (generate_one_element): Set TODO_update_smt_usage if needed.
139         (pass_sra): Remove TODO_update_smt_usage.
140         * tree-ssa-forwprop.c (forward_propagate_addr_expr): Add some
141         parameter.
142         (tree_ssa_forward_propagate_single_use_vars): Return
143         TODO_update_smt_usage if we need to update SMT usage.
144         (pass_forwprop): Remove TODO_update_smt_usage.
145         
146 2006-03-03  Diego Novillo  <dnovillo@redhat.com>
147
148         * tree-ssa-operands.c: Tidy whitespace.  Fix spelling.
149         (correct_use_link): Remove reference to get_stmt_operands.
150         (update_stmt_operands): Likewise.
151         (get_modify_expr_operands): New function factored out of
152         parse_ssa_operands and get_expr_operands.
153         Try to create V_MUST_DEFs for LHS by default.
154         (get_expr_operands) <case MODIFY_EXPR>: Call
155         get_modify_expr_operands.
156         <case ARRAY_RANGE_REF>: Handle together with ARRAY_REF.
157         <case BIT_FIELD_REF>: Clear opf_kill_def from FLAGS.
158         (parse_ssa_operands) <case MODIFY_EXPR>: Call
159         get_modify_expr_operands.
160
161 2006-03-03  Kazu Hirata  <kazu@codesourcery.com>
162
163         * tree-dfa.c (referenced_var_lookup_if_exists): Remove.
164         * tree-flow.h: Remove the prototype for
165         referenced_var_lookup_if_exists.
166
167 2006-03-03  Steve Ellcey  <sje@cup.hp.com>
168
169         PR rtl-optimization/26345
170         PR target/19061
171         * config/ia64/predicates.md (basereg_operand): Don't look in subregs.
172
173 2006-03-03  Roger Sayle  <roger@eyesopen.com>
174
175         PR tree-optimization/26524
176         * tree-scalar-evolution.c (interpret_rhs_modify_expr): Use
177         fold_convert to create a constant of the appropriate type.
178
179 2006-03-03  Richard Sandiford  <richard@codesourcery.com>
180
181         * doc/tm.texi: Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
182         SYMBOL_REF_IN_BLOCK_P.
183         * doc/rtl.texi: Likewise.  Refer to SYMBOL_FLAG_HAS_BLOCK_INFO instead
184         of SYMBOL_FLAG_IN_BLOCK.
185         * gengtype.c (adjust_field_rtx_def): Use SYMBOL_REF_HAS_BLOCK_INFO_P
186         instead of SYMBOL_REF_IN_BLOCK_P.
187         * explow.c (use_anchored_address): Likewise.
188         * rtl.c (rtx_size): Likewise.
189         * varasm.c (create_block_symbol): Set SYMBOL_FLAG_HAS_BLOCK_INFO
190         instead of SYMBOL_FLAG_IN_BLOCK.
191         (make_decl_rtl): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
192         SYMBOL_REF_IN_BLOCK_P.
193         (assemble_variable): Likewise.
194         (output_constant_def_contents): Likewise.
195         (output_constant_pool): Likewise.
196         (default_encode_section_info): Preserve SYMBOL_FLAG_HAS_BLOCK_INFO
197         instead of SYMBOL_FLAG_IN_BLOCK.
198         * rtl.h (block_symbol): Refer to SYMBOL_REF_HAS_BLOCK_INFO_P instead of
199         SYMBOL_REF_IN_BLOCK_P.
200         (SYMBOL_REF_BLOCK): Likewise.
201         (SYMBOL_REF_OFFSET): Likewise.
202         (BLOCK_SYMBOL_CHECK): Use SYMBOL_REF_HAS_BLOCK_INFO_P instead of
203         SYMBOL_REF_IN_BLOCK_P.
204         (SYMBOL_FLAG_IN_BLOCK): Replace with...
205         (SYMBOL_FLAG_HAS_BLOCK_INFO): ...this.
206         (SYMBOL_REF_IN_BLOCK_P): Replace with...
207         (SYMBOL_REF_HAS_BLOCK_INFO_P): ...this.
208
209 2006-03-03  Jakub Jelinek  <jakub@redhat.com>
210
211         * config/arm/unwind-arm.h (_Unwind_GetIPInfo): Fix pasto.
212
213 2006-03-02  Roger Sayle  <roger@eyesopen.com>
214
215         * simplify-rtx.c (simplify_unary_operation): When simplifying
216         (neg (lt X 0)) into (ashiftrt X C) or (lshiftrt X C), make sure
217         that we perform the right shift in the appropriate mode, and
218         then extend or truncate the result to requested mode.
219
220 2006-03-03  Zdenek Dvorak <dvorakz@suse.cz>
221
222         * gengtype.c (main): Handle double_int type.
223         * tree.h (struct tree_int_cst): Make type of int_cst double_int.
224         * double-int.c: New file.
225         * double-int.h: New file.
226         * system.h: Include doubleint.h.
227         * Makefile.in (SYSTEM_H): Include double-int.h.
228         (double-int.o): Add.
229
230 2006-03-03  Joseph S. Myers  <joseph@codesourcery.com>
231
232         PR bootstrap/26478
233         * Makefile.in (stmp-int-hdrs): Remove include/unwind.h before
234         copying over it.
235
236 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
237
238         * tree-vrp.c (remove_range_assertions): Do not update statements
239         unnecessarily.
240
241 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
242
243         * cse.c (rest_of_handle_cse): Do not pass CLEANUP_PRE_LOOP to cfg
244         cleanup.
245         * gcse.c (rest_of_handle_gcse): Ditto.
246         * except.c (gate_handle_eh): Ditto.
247         * cfgcleanup.c (rest_of_handle_jump2): Ditto.
248         * basic-block.h (CLEANUP_PRE_LOOP): Remove.
249
250 2006-03-02  Eric Christopher  <echristo@apple.com>
251
252         * config/i386/i386.c (machopic_output_stub): Add indirection to
253         jump.
254
255 2006-03-02  Zdenek Dvorak <dvorakz@suse.cz>
256
257         * loop.c: Removed.
258
259 2006-03-02  David S. Miller  <davem@sunset.davemloft.net>
260
261         Sun Niagara specific optimizations.
262         * config.gcc: Recognize niagara as target.
263         * config/sparc/sparc.h (SPARC_RELAXED_ORDERING): Mention Niagara.
264         (TARGET_CPU_niagara): Define.
265         (CPP_CPU64_DEFAULT_SPEC): Define __sparc_v9__ for Niagara.
266         (ASM_CPU64_DEFAULT_SPEC): Pass -Av9b for Niagara.
267         (CPP_CPU_SPEC): Handle -mcpu=niagara.
268         (ASM_CPU_SPEC): Likewise.
269         (PROCESSOR_NIAGARA): New enum entry.
270         (REGISTER_MOVE_COST): Handle Niagara.
271         (BRANCH_COST, PREFETCH_BLOCK, SIMULTANEOUS_PREFETCHES): Likewise.
272         * config/sparc/sparc.c (niagara_costs): New processor_costs entry.
273         (sparc_override_options): Recognize "niagara", set appropriate
274         default MASK_* values for it, and align functions to 32-bytes
275         by default just like ULTRASPARC/ULTRASPARC3.
276         (sparc_initialize_trampoline): Handle niagara like ultrasparc.
277         (sparc64_initialize_trampoline): Likewise.
278         (sparc_use_sched_lookahead): Use zero for niagara.
279         (sparc_issue_rate): Use one for niagara.
280         * config/sparc/niagara.md: New file.
281         * config/sparc/sparc.md: Include it.
282         * config/sparc/sol2-bi.h (CPP_CPU64_DEFAULT_SPEC,
283         ASM_CPU32_DEFAULT_SPEC, ASM_CPU64_DEFAULT_SPEC): Set appropriately
284         when default cpu is niagara.
285         (CPP_CPU_SPEC): Handle -mcpu=niagara.
286         (ASM_CPU_SPEC): Likewise.
287         * config/sparc/sol2.h (ASM_CPU_DEFAULT_SPEC): Set appropriately
288         when default cpu is niagara.
289         (ASM_CPU_SPEC): Handle -mcpu=niagara.
290         * config/sparc/linux64.h: Handle a default of TARGET_CPU_niagara
291         just like v9/ultrasparc/ultrasparc3.
292         * doc/invoke.texi: Add documentation for "niagara" and improve
293         existing documentation for ultrasparc variants.
294
295 2006-03-02  Diego Novillo  <dnovillo@redhat.com>
296
297         * tree-ssa-operands.c (update_stmt_operands): Update documentation.
298
299 2006-03-02  Richard Sandiford  <richard@codesourcery.com>
300
301         * doc/tm.texi (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Document.
302         (ASM_OUTPUT_BSS): Describe the two ways of handling global BSS,
303         and say that only one is needed.
304         * doc/rtl.texi (SYMBOL_REF_BLOCK): Say that the block can be null.
305         * target.h (have_switchable_bss_sections): New hook.
306         * explow.c (use_anchored_address): Check that the symbol is in a block.
307         * varasm.c (tls_comm_section, comm_section, lcomm_section)
308         (bss_noswitch_section): New variables.
309         (get_unnamed_section): Add SECTION_UNNAMED to the flags.
310         (get_noswitch_section): New function.
311         (get_block_for_section): Allow SECT to be null.
312         (unlikely_text_section_p): Use SECTION_STYLE.
313         (bss_initializer_p): New function.
314         (get_variable_section): Move earlier in file.  Take a new argument,
315         prefer_noswitch_p.  Move bss checks from assemble_variable to here.
316         Return one of the new *_sections in such cases.
317         (get_block_for_decl): New function, extracting some logic from
318         use_blocks_for_decl_p.
319         (change_symbol_section): Remove in favor of...
320         (change_symbol_block): ...this new function.
321         (use_blocks_for_decl_p): Remove checks now performed by
322         get_block_for_decl.
323         (make_decl_rtl): Use change_symbol_block and get_block_for_decl.
324         (ASM_EMIT_LOCAL, ASM_EMIT_BSS, ASM_EMIT_COMMON): Delete in favor of...
325         (emit_local, emit_bss, emit_common): ...these new functions.
326         Return true if the alignment was honored.
327         (emit_tls_common): New function.
328         (asm_emit_uninitialised): Delete.
329         (assemble_variable_noswitch): New function, split out from...
330         (assemble_variable): ...here.  Don't make decisions about common
331         variables here.  Globalize all public decls that go into non-common
332         sections.  Check whether SYMBOL_REF_BLOCK is null.
333         (output_constant_def_contents): Check whether SYMBOL_REF_BLOCK is null.
334         (output_constant_pool): Likewise.
335         (init_varasm_once): Initialize the new section variables.
336         (have_global_bss_p): New function.
337         (categorize_decl_for_section): Use bss_initializer_p.
338         (switch_to_section): Use SECTION_STYLE.  Abort for SECTION_NOSWITCH.
339         (place_block_symbol): Assert that the symbol must be in a block.
340         * target-def.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): New macro.
341         (TARGET_INITIALIZER): Include it.
342         * rtl.h (SYMBOL_REF_BLOCK): Document the null alternative.
343         * output.h (SECTION_STYLE_MASK, SECTION_COMMON): New macros.
344         (SECTION_MACH_DEP): Bump by two.
345         (SECTION_UNNAMED, SECTION_NOSWITCH): New macros.
346         (unnamed_section): Mention SECTION_UNNAMED in comment.
347         (named_section): Likewise SECTION_NAMED.
348         (noswitch_section_callback): New type.
349         (noswitch_section): New structure.
350         (section): Add a noswitch_section alternative.
351         (SECTION_STYLE): New macro.
352         (tls_comm_section, comm_section, lcomm_section): Declare.
353         (bss_noswitch_section, have_global_bss_p): Declare.
354         * config/elfos.h (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
355         * config/iq2000/iq2000.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
356         Override.
357         * config/v850/v850.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Override.
358         * config/stormy16/stormy16.c (TARGET_HAVE_SWITCHABLE_BSS_SECTIONS):
359         Override.
360
361 2006-03-02  Daniel Berlin <dberlin@dberlin.org>
362
363         * gcc/tree-vrp.c (execute_vrp): Return value.
364         * gcc/regrename.c (rest_of_handle_regrename): Ditto.
365         * gcc/tree-into-ssa.c (rewrite_into_ssa): Ditto.
366         * gcc/tree-complex.c (tree_lower_complex): Ditto.
367         (tree_lower_complex_O0): Ditto.
368         * gcc/tracer.c (rest_of_handle_tracer): Ditto.
369         * gcc/postreload-gcse.c (rest_of_handle_gcse2): Ditto.
370         * gcc/postreload.c (rest_of_handle_postreload): Ditto.
371         * gcc/tree-tailcall.c (execute_tail_recursion): Ditto.
372         (execute_tail_calls): Ditto.
373         * gcc/tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
374         * gcc/tree.h (init_function_for_compilation): Ditto.
375         * gcc/ipa-cp.c (ipcp_driver): Ditto.
376         * gcc/tree-scalar-evolution.c (scev_const_prop): Ditto.
377         * gcc/tree-scalar-evolution.h (scev_const_prop): Ditto.
378         * gcc/final.c (compute_alignments): Ditto.
379         (rest_of_handle_final): Ditto.
380         (rest_of_handle_shorten_branches): Ditto.
381         (rest_of_clean_state): Ditto.
382         * gcc/omp-low.c (execute_expand_omp): Ditto.
383         (execute_lower_omp): Ditto.
384         * gcc/tree-ssa-dse.c (tree_ssa_dse): Ditto.
385         * gcc/ipa-reference.c (static_execute): Ditto.
386         * gcc/tree-ssa-uncprop.c (tree_ssa_uncprop): Ditto.
387         * gcc/reorg.c (rest_of_handle_delay_slots): Ditto.
388         (rest_of_handle_machine_reorg): Ditto.
389         * gcc/cgraphunit.c (rebuild_cgraph_edges): Ditto.
390         * gcc/flow.c (recompute_reg_usage): Ditto.
391         (rest_of_handle_remove_death_notes): Ditto.
392         (rest_of_handle_life): Ditto.
393         (rest_of_handle_flow2): Ditto.
394         * gcc/tree-ssa-copyrename.c (rename_ssa_copies): Ditto.
395         * gcc/tree-ssa-ccp.c (do_ssa_ccp): Ditto.
396         (do_ssa_store_ccp): Ditto.
397         (execute_fold_all_builtins): Ditto.
398         * gcc/mode-switching.c (rest_of_handle_mode_switching): Ditto.
399         * gcc/modulo-sched.c (rest_of_handle_sms): Ditto.
400         * gcc/ipa-pure-const.c (static_execute): Ditto.
401         * gcc/cse.c (rest_of_handle_cse): Ditto.
402         (rest_of_handle_cse2): Ditto.
403         * gcc/web.c (rest_of_handle_web): Ditto.
404         * gcc/tree-stdarg.c (execute_optimize_stdarg): Ditto.
405         * gcc/tree-ssa-math-opts.c (execute_cse_reciprocals): Ditto.
406         * gcc/tree-ssa-dom.c (tree_ssa_dominator_optimize): Ditto.
407         * gcc/tree-nrv.c (tree_nrv): Ditto.
408         (execute_return_slot_opt): Ditto.
409         * gcc/tree-ssa-alias.c (compute_may_aliases): Ditto.
410         (create_structure_vars): Ditto.
411         * gcc/loop-init.c (rtl_loop_init): Ditto.
412         (rtl_loop_done): Ditto.
413         (rtl_move_loop_invariants): Ditto.
414         (rtl_unswitch): Ditto.
415         (rtl_unroll_and_peel_loops): Ditto.
416         (rtl_doloop): Ditto.
417         * gcc/gimple-low.c (lower_function_body): Ditto.
418         (mark_used_blocks): Ditto.
419         * gcc/tree-ssa-sink.c (execute_sink_code): Ditto.
420         * gcc/ipa-inline.c (cgraph_decide_inlining): Ditto.
421         (cgraph_early_inlining): Ditto.
422         * gcc/global.c (rest_of_handle_global_alloc): Ditto.
423         * gcc/jump.c (cleanup_barriers): Ditto.
424         (purge_line_number_notes): Ditto.
425         * gcc/ifcvt.c (rest_of_handle_if_conversion): Ditto.
426         (rest_of_handle_if_after_reload): Ditto.
427         * gcc/tree-ssa-loop.c (tree_ssa_loop_init): Ditto.
428         (tree_ssa_loop_im): Ditto.
429         (tree_ssa_loop_unswitch): Ditto.
430         (tree_vectorize): Ditto.
431         (tree_linear_transform): Ditto.
432         (tree_ssa_loop_ivcanon): Ditto.
433         (tree_ssa_empty_loop): Ditto.
434         (tree_ssa_loop_bounds): Ditto.
435         (tree_complete_unroll): Ditto.
436         (tree_ssa_loop_prefetch): Ditto.
437         (tree_ssa_loop_ivopts): Ditto.
438         (tree_ssa_loop_done): Ditto.
439         * gcc/predict.c (tree_estimate_probability): Ditto.
440         * gcc/recog.c (split_all_insns_noflow): Ditto.
441         (rest_of_handle_peephole2): Ditto.
442         (rest_of_handle_split_all_insns): Ditto.
443         * gcc/tree-eh.c (lower_eh_constructs): Ditto.
444         * gcc/regmove.c (rest_of_handle_regmove): Ditto.
445         (rest_of_handle_stack_adjustments): Ditto.
446         * gcc/local-alloc.c (rest_of_handle_local_alloc): Ditto.
447         * gcc/function.c (instantiate_virtual_regs): Ditto.
448         (init_function_for_compilation): Ditto.
449         (rest_of_handle_check_leaf_regs): Ditto.
450         * gcc/gcse.c (rest_of_handle_jump_bypass): Ditto.
451         (rest_of_handle_gcse): Ditto.
452         * gcc/ipa-type-escape.c (type_escape_execute): Ditto.
453         * gcc/alias.c (rest_of_handle_cfg): Ditto.
454         * gcc/tree-if-conv.c (main_tree_if_conversion): Ditto.
455         * gcc/profile.c (rest_of_handle_branch_prob): Ditto.
456         * gcc/tree-ssa-phiopt.c (tree_ssa_phiopt): Ditto.
457         * gcc/rtl-factoring.c (rest_of_rtl_seqabstr): Ditto.
458         * gcc/bt-load.c (rest_of_handle_branch_target_load_optimize): Ditto
459         * gcc/tree-dfa.c (find_referenced_vars): Ditto.
460         * gcc/except.c (set_nothrow_function_flags): Ditto.
461         (convert_to_eh_region_ranges): Ditto.
462         (rest_of_handle_eh): Ditto.
463         * gcc/emit-rtl.c (unshare_all_rtl): Ditto.
464         (remove_unnecessary_notes): Ditto.
465         * gcc/except.h (set_nothrow_function_flags): Ditto.
466         (convert_to_eh_region_ranges): Ditto.
467         * gcc/cfgexpand.c (tree_expand_cfg): Ditto.
468         * gcc/tree-cfgcleanup.c (merge_phi_nodes): Ditto.
469         * gcc/tree-ssa-pre.c (do_pre): Ditto.
470         (execute_fre): Ditto.
471         * gcc/cfgcleanup.c (rest_of_handle_jump): Ditto.
472         (rest_of_handle_jump2): Ditto.
473         * gcc/tree-sra.c (tree_sra): Ditto.
474         * gcc/tree-mudflap.c (execute_mudflap_function_ops): Ditto.
475         (execute_mudflap_function_decls): Ditto.
476         * gcc/tree-ssa-copy.c (do_copy_prop): Ditto.
477         (do_store_copy_prop): Ditto.
478         * gcc/ipa-prop.h (ipcp_driver): Ditto.
479         * gcc/cfglayout.c (insn_locators_initialize): Ditto.
480         * gcc/tree-ssa-forwprop.c
481         (tree_ssa_forward_propagate_single_use_vars): Ditto.
482         * gcc/cfglayout.h (insn_locators_initialize): Ditto.
483         * gcc/tree-ssa-dce.c (tree_ssa_dce): Ditto.
484         * gcc/tree-ssa.c (execute_early_warn_uninitialized): Ditto.
485         (execute_late_warn_uninitialized): Ditto.
486         * gcc/rtl.h (cleanup_barriers): Ditto.
487         (split_all_insns_noflow): Ditto.
488         (purge_line_number_notes): Ditto.
489         (unshare_all_rtl): Ditto.
490         (remove_unnecessary_notes): Ditto.
491         (recompute_reg_usage): Ditto.
492         (variable_tracking_main): Ditto.
493         * gcc/integrate.c (emit_initial_value_sets): Ditto.
494         * gcc/integrate.h (emit_initial_value_sets): Ditto.
495         * gcc/tree-optimize.c (execute_free_datastructures): Ditto
496         (execute_free_cfg_annotations): Ditto.
497         (execute_fixup_cfg): Ditto.
498         (execute_cleanup_cfg_pre_ipa): Ditto.
499         (execute_cleanup_cfg_post_optimizing): Ditto.
500         (execute_init_datastructures): Ditto.
501         * gcc/tree-object-size.c (compute_object_sizes): Ditto.
502         * gcc/combine.c (rest_of_handle_combine): Ditto.
503         * gcc/tree-outof-ssa.c (rewrite_out_of_ssa): Ditto.
504         * gcc/bb-reorder.c (duplicate_computed_gotos): Ditto.
505         (rest_of_handle_reorder_blocks): Ditto.
506         (rest_of_handle_partition_blocks): Ditto.
507         * gcc/var-tracking.c (variable_tracking_main): Ditto.
508         * gcc/tree-profile.c (tree_profiling): Ditto.
509         * gcc/tree-vect-generic.c (expand_vector_operations): Ditto.
510         * gcc/reg-stack.c (rest_of_handle_stack_regs): Ditto.
511         * gcc/sched-rgn.c (rest_of_handle_sched): Ditto.
512         (rest_of_handle_sched2): Ditto.
513         * gcc/basic-block.h (free_bb_insn): Ditto.
514         * gcc/tree-ssa-structalias.c (ipa_pta_execute): Ditto.
515         * gcc/tree-cfg.c (execute_build_cfg): Ditto.
516         (remove_useless_stmts): Ditto.
517         (split_critical_edges): Ditto.
518         (execute_warn_function_return): Ditto.
519         (execute_warn_function_noreturn): Ditto.
520         * gcc/tree-ssa-reassoc.c (execute_reassoc): Ditto.
521         * gcc/cfgrtl.c (free_bb_for_insn): Ditto.
522         * gcc/passes.c (execute_one_pass): Run additional
523         todos returned by execute function.
524         * gcc/tree-pass.h (struct tree_opt_pass): Make execute
525         return a value.
526
527 2006-03-02  Richard Guenther  <rguenther@suse.de>
528
529         * tree-ssa-alias.c (find_used_portions): Consider taking
530         the address as making the variable not write-only.
531
532 2006-03-02  Nick Clifton  <nickc@redhat.com>
533
534         * config.gcc (default_use_cxa_atexit): Extend the description of
535         this configure variable.  Set its default value to "yes" for
536         Linux, NetBSD and ELF targets on the assumption that they will
537         use C libraries with the __cxa_atexit function.
538
539 2006-03-02  Ben Elliston  <bje@au.ibm.com>
540
541         * config/rs6000/linux-unwind.h (frob_update_context): Mark `fs'
542         parameter as unused to suppress a build warning.
543
544 2006-03-02  Ben Elliston  <bje@au.ibm.com>
545
546         * mklibgcc.in: Depend on config/dfp-bit.h in rules that compile
547         config/dfp-bit.c.
548
549 2006-03-01  Roger Sayle  <roger@eyesopen.com>
550
551         PR other/26489
552         * gthr-posix.h (__gthrw2): Define to take three parameters, the
553         declared name, the weak reference name, and the typeof name.
554         (__gthrw): Avoid expanding the declared name suffix.
555         (__gthrw3): New Tru64 specific macro to simplify the OSF/1 decls.
556
557 2006-03-01  Jakub Jelinek  <jakub@redhat.com>
558
559         * dwarf2.h (DW_TAG_condition, DW_TAG_shared_type): New constants
560         from DWARF 3.
561         (DW_AT_description, DW_AT_binary_scale, DW_AT_decimal_scale,
562         DW_AT_small, DW_AT_decimal_sign, DW_AT_digit_count,
563         DW_AT_picture_string, DW_AT_mutable, DW_AT_threads_scaled,
564         DW_AT_explicit, DW_AT_object_pointer, DW_AT_endianity,
565         DW_AT_elemental, DW_AT_pure, DW_AT_recursive): New.
566         (DW_OP_form_tls_address, DW_OP_call_frame_cfa, DW_OP_bit_piece): New.
567         (DW_ATE_packed_decimal, DW_ATE_numeric_string, DW_ATE_edited,
568         DW_ATE_signed_fixed, DW_ATE_unsigned_fixed): New.
569         (DW_DS_unsigned, DW_DS_leading_overpunch, DW_DS_trailing_overpunch,
570         DW_DS_leading_separate, DW_DS_trailing_separate): New.
571         (DW_END_default, DW_END_big, DW_END_little): New.
572         (DW_END_lo_user, DW_END_hi_user): Define.
573         (DW_LNE_lo_user, DW_LNE_hi_user): Define.
574         (DW_CFA_val_offset, DW_CFA_val_offset_sf, DW_CFA_val_expression): New.
575         (DW_LANG_PLI, DW_LANG_ObjC, DW_LANG_ObjC_plus_plus, DW_LANG_UPC,
576         DW_LANG_D): New.
577
578 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
579
580         * tree.def (SYMBOL_MEMORY_TAG): Rename from TYPE_MEMORY_TAG.
581         Update all users.
582         * tree-pass.h (PROP_smt_usage): Rename from PROP_tmt_usage.
583         Update all users.
584         (TODO_update_smt_usage): Rename from TODO_update_tmt_usage.
585         Update all users.
586         * tree.h (SMT_USED_ALONE): Rename from TMT_USED_ALONE.
587         Update all users.
588         * tree-flow.h (struct var_ann_d): Rename field 'type_mem_tag'
589         to 'symbol_mem_tag'.
590         Update all users.
591         * doc/tree-ssa.texi: Update documentation to reflect TMT->SMT
592         rename.
593
594 2006-03-01  Roger Sayle  <roger@eyesopen.com>
595
596         * builtins.c (fold_builtin_copysign): Delete unreachable code.
597
598 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
599
600         PR target/25761
601         * config/darwin.h (MACHOPIC_JUST_INDIRECT): Check just
602         MACHO_DYNAMIC_NO_PIC_P.
603         (MACHOPIC_PURE): Check flag_pic and not MACHO_DYNAMIC_NO_PIC_P.
604
605 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
606
607         PR target/26389
608         * config/darwin-protos.h (darwin_asm_output_anchor):
609         Declare.
610         * config/darwin-sections.def (cstring_section):
611         Add SECTION_MERGE to the flags.
612         (literal4_section): Likewise.
613         (literal8_section): Likewise.
614         (objc_selector_refs_section): Likewise.
615         (objc_cls_refs_section): Likewise.
616         * config/darwin.c (darwin_asm_output_anchor): New
617         function.
618         * config/darwin.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
619
620 2006-03-01  Daniel Berlin  <dberlin@dberlin.org>
621
622         Fix PR tree-optimization/26443
623         * tree-vrp.c (pass_vrp): Add TODO_update_tmt_usage
624         to todo and PROP_tmt_usage to properties_destroyed.
625         * tree-ssa-ccp.c (pass_ccp): Ditto.
626         (pass_store_ccp): Ditto.
627         * tree-ssa-dom.c (pass_dominator): Ditto.
628
629 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
630
631         * tree-ssa-operands.c: Cleanup whitespace.
632         (get_asm_expr_operands): Move before first invocation.
633         (get_indirect_ref_operands): Likewise.
634         (get_tmr_operands): Likewise.
635         (get_call_expr_operands): Likewise.
636         (append_def): Likewise.
637         (append_use): Likewise.
638         (append_v_may_def): Likewise.
639         (append_v_must_def): Likewise.
640         (add_call_clobber_ops): Likewise.
641         (add_call_read_ops): Likewise.
642         (add_stmt_operand): Likewise.
643         (add_virtual_operand): Likewise.
644         (build_ssa_operands): Likewise.
645
646 2006-03-01  Andrew Pinski  <pinskia@physics.uc.edu>
647
648         PR middle-end/26022
649         Revert:
650         PR middle-end/24437
651         * tree-ssa-ccp.c (fold_stmt): Move folding of OBJ_TYPE_REF
652         with a call expr to ...
653         * fold-const.c (fold_ternary) <case CALL_EXPR>: Here.
654
655 2006-03-01  Diego Novillo  <dnovillo@redhat.com>
656
657         * tree-vrp.c (extract_range_from_assert): Remove special
658         handling for types with super-types.
659
660 2006-03-01  Ben Elliston  <bje@au.ibm.com>
661
662         * config.gcc: Add t-dfprules to $tmake_file for powerpc-*-linux*
663         and powerpc64-*-linux* configurations.
664         * config/t-dfprules: New file.
665
666         * mklibgcc.in: Add logic to handle $DFP_ENABLE and $DFP_CFLAGS.
667         Compile dfp-bit.c from the source directory using -DWIDTH and
668         $DFP_CFLAGS to control the compilation of that file, rather than
669         generating width-specific versions in the build directory.
670         * Makefile.in (libgcc.mk): Pass down DFP_ENABLE and DFP_CFLAGS.
671         (LIBGCC_DEPS): Replace $(D32PBIT) et al with config/dfp-bit.[hc].
672
673 2006-02-28  Zack Weinberg  <zackw@panix.com>
674
675         * doc/md.texi: Avoid use of @headitem so that makeinfo <4.7
676         continues to work.
677
678 2006-02-28  Eric Christopher  <echristo@apple.com>
679
680         * config/rs6000/darwin.h (ENABLE_STACK_EXECUTE): Define.
681         Set up IN_LIBGCC definition of TARGET_64BIT.
682         * config/i386/darwin.h (ENABLE_STACK_EXECUTE): Define.
683
684 2006-02-28  Roger Sayle  <roger@eyesopen.com>
685
686         PR middle-end/14752
687         * c-common.c (c_common_truthvalue_conversion) <MINUS_EXPR,
688         BIT_XOR_EXPR, BIT_AND_EXPR>: Delete.  Let fold optimize these
689         cases via the construction of "expr != 0".
690
691 2006-02-28  Steven Bosscher  <stevenb.gcc@gmail.com>
692
693         * alias.c (alias_invariant, alias_invariant_size): Remove.
694         (record_base_value): Remove.
695         (memrefs_conflict_p): Don't look at alias_invariant.
696         (end_alias_analysis): Don't free it.
697         * alias.h (record_base_value): Remove prototype.
698
699 2006-02-28  Paolo Bonzini  <bonzini@gnu.org>
700             Adam Nemet  <anemet@caviumnetworks.com>
701
702         * rtl.h (truncated_to_mode): Declare it.
703         (struct rtl_hooks): Add reg_truncated_to_mode hook.
704         * rtlhooks-def.h (RTL_HOOKS_REG_TRUNCATED_TO_MODE): New macro.
705         (RTL_HOOKS_INITIALIZER): Include it.
706         * rtlhooks.c (reg_truncated_to_mode_general): New function.
707         * combine.c (RTL_HOOKS_REG_TRUNCATED_TO_MODE): Override to
708         reg_truncated_to_mode.
709         * rtlanal.c (truncated_to_mode): Define it.
710         * simplify-rtx.c (simplify_unary_operation_1): Use it.
711
712 2006-02-28  Jeff Law  <law@redhat.com>
713
714         * tree-chrec.c (chrec_convert_aggressive): Do not eliminate
715         conversions where TYPE_MIN_VALUE/TYPE_MAX_VALUE do not cover
716         the range allowed by TYPE_PRECISION.
717
718         * tree.h (strct phi_arg_d): Remove unused NONZERO field.
719
720 2006-02-28  Dorit Nuzman  <dorit@il.ibm.com>
721
722         PR tree-optimization/26419
723         * doc/invoke.texi (ftree-vectorizer-verbose): Add information on
724         values of n.
725
726 2006-02-27  Zack Weinberg  <zackw@panix.com>
727
728         * doc/md.texi: Fix typo in previous change.
729
730 2006-02-27  Kenneth Zadeck <zadeck@naturalbridge.com>
731
732         * df.c: Remove.
733
734 2006-02-27  Zack Weinberg  <zackw@panix.com>
735
736         * rtl.def (define_constraint, define_register_constraint)
737         (define_memory_constraint, define_address_constraint): New MD forms.
738         * gensupport.c (process_rtx): Put define_constraint etc on the
739         predicate queue.
740         * genpreds.c (process_define_predicate): Adjust comment.  Validate
741         the name, and call validate_exp to validate the expression.
742         (mark_mode_tests, write_extract_subexp): Can assume correct input.
743         (write_predicate_expr): Likewise.  NAME argument no longer necessary;
744         all callers changed.
745         (validate_exp, needs_variable, struct constraint_data)
746         (constraints_by_letter_table, first_constraint, last_constraint_ptr)
747         (FOR_ALL_CONSTRAINTS, generic_constraint_letters, const_int_constraints)
748         (const_dbl_constraints, constraint_max_namelen)
749         (have_register_constraints, have_memory_constraints)
750         (have_address_constraints, have_address_constraints)
751         (have_extra_constraints, have_const_int_constraints)
752         (have_const_dbl_constraints, mangle, add_constraint)
753         (process_define_constraint, process_define_register_constraint)
754         (write_enum_constraint_num, write_lookup_constraint)
755         (write_insn_constraint_len, write_regclass_for_constraint)
756         (write_constraint_satisfied_p, write_insn_const_int_ok_for_constraint)
757         (write_insn_extra_memory_constraint)
758         (write_insn_extra_address_constraint)
759         (write_satisfies_constraint_fns): New.
760         (write_tm_preds_h): If we have new-style constraint definitions,
761         prototype the functions generated from them, and define the
762         old constraint interface (still used by generic code) in terms of
763         those functions.
764         (write_insn_preds_c): If we have new-style constraint definitions,
765         generate all relevant functions from those definitions.
766         (main): Handle define_constraint etc.
767         * genoutput.c (struct constraint_data, indep_constraints)
768         (mdep_constraint_letters, constraints_by_letter_table, note_constraint)
769         (mdep_constraint_len): New data structures and functions, defined
770         #ifdef USE_MD_CONSTRAINTS.
771         (check_constraint_len): Don't define #ifdef USE_MD_CONSTRAINTS.
772         (validate_insn_alternatives): If USE_MD_CONSTRAINTS is defined,
773         use new logic to validate operand constraints against constraint
774         definitions.
775         (main): Process define_constraint etc. if USE_MD_CONSTRAINTS is
776         defined.
777         * defaults.h: If none of the old-style constraint macros are
778         defined, define USE_MD_CONSTRAINTS; do not provide defaults for any
779         old-style macros; and poison REG_CLASS_FROM_LETTER,
780         CONST_OK_FOR_LETTER_P, CONST_DOUBLE_OK_FOR_LETTER_P, and
781         EXTRA_CONSTRAINT.
782         * recog.c (reg_fits_class_p): If cl is NO_REGS, return 0 immediately.
783         * doc/md.texi: Document new constraint-definition mechanism and the
784         C interface it provides.  Remove references to old mechanism
785         elsewhere in the document.
786         (Machine Constraints): Use pathnames relative to gcc directory,
787         i.e. config/ARCH/FILE.  Change i386 section to refer to
788         config/i386/predicates.md; update that section to match docstrings.
789         * doc/tm.texi: Move all documentation of the old constraint-
790         definition macros to their own section, clearly mark as obsolete.
791
792         * config/i386/predicates.md (R, q, Q, l, a, b, c, d, S, D, A, f, t)
793         (u, y, x, Y, I, J, K, L, M, N, O, G, C, e, Z): New constraint
794         definitions.
795         * config/i386/i386.h (REG_CLASS_FROM_LETTER, CONST_OK_FOR_LETTER_P)
796         (CONST_DOUBLE_OK_FOR_LETTER_P, EXTRA_CONSTRAINT): Delete.
797         * config/i386/i386.md (*movdf_nointeger): Remove stray 'H' from
798         constraint strings.
799         (splits and peepholes): Use satisfies_constraint_*.
800         * config/i386/i386.c (memory_address_length)
801         (ix86_attr_length_immediate_default): Use satisfies_constraint_*.
802
803 2006-02-27  Daniel Berlin  <dberlin@dberlin.org>
804
805         * lambda-code.c (can_convert_to_perfect_nest): Allow any type of
806         scalar operation to be put back into the loop.
807
808 2006-02-27  Jakub Jelinek  <jakub@redhat.com>
809
810         PR other/26208
811         * unwind-dw2.c (struct _Unwind_Context): Add signal_frame field.
812         (extract_cie_info): Handle S flag in augmentation string.
813         (execute_cfa_program): If context->signal_frame, execute also
814         fs->pc == context->ra instructions.
815         (uw_frame_state_for): If context->signal_frame, don't subtract one
816         from context->ra to find FDE.
817         (uw_update_context_1): Set context->signal_frame to
818         fs->signal_frame.
819         (_Unwind_GetIPInfo): New function.
820         * unwind-dw2.h (_Unwind_FrameState): Add signal_frame field.
821         * unwind-c.c (PERSONALITY_FUNCTION): Use _Unwind_GetIPInfo instead
822         of _Unwind_GetIP.
823         * unwind-sjlj.c (_Unwind_GetIPInfo): New function.
824         * unwind-generic.h (_Unwind_GetIPInfo): New prototype.
825         * unwind-compat.c (_Unwind_GetIPInfo): New function.
826         * libgcc-std.ver (_Unwind_GetIPInfo): Export @@GCC_4.2.0.
827         * config/ia64/unwind-ia64.c (_Unwind_GetIPInfo): New function.
828         * config/arm/unwind-arm.h (_Unwind_GetIPInfo): Define.
829         * config/i386/linux-unwind.h (x86_fallback_frame_state,
830         x86_64_fallback_frame_state): Set fs->signal_frame.
831         * config/rs6000/linux-unwind.h (ppc_fallback_frame_state): Likewise.
832         (MD_FROB_UPDATE_CONTEXT): Define unconditionally.
833         (frob_update_context): Likewise.  Workaround missing S flag in
834         Linux 2.6.12 - 2.6.16 kernel vDSOs.
835         * config/s390/linux-unwind.h (s390_fallback_frame_state): Likewise.
836         Remove the psw_addr + 1 hack.
837
838 2006-02-27  Daniel Berlin  <dberlin@dberlin.org>
839
840         * tree-ssa-structalias.c (get_constraint_for): Move code to deal
841         with aggregates here.
842         (find_func_aliases): Remove code for &<aggregate> from here.
843
844 2006-02-26  Roger Sayle  <roger@eyesopen.com>
845
846         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold (~X & C) eq/ne 0 as
847         (X & C) ne/eq 0, where C is a single bit, i.e. a power of two.
848         Fold both "((X & C) ^ C) eq/ne 0" and "((X ^ C) & C) eq/ne 0"
849         as (X & C) ne/eq 0.
850
851 2006-02-26  Roger Sayle  <roger@eyesopen.com>
852
853         PR middle-end/19983
854         * real.c (real_nan): Allow both 0x and 0X as hexadecimal prefixes.
855
856 2006-02-26  Zdenek Dvorak <dvorakz@suse.cz>
857
858         * opts.c (decode_options): Do not handle flag_strength_reduce.
859         (common_handle_option): Handle OPT_floop_optimize, OPT_frerun_loop_opt
860         and OPT_fstrength_reduce.
861         * tree-ssa-loop.c (tree_ssa_loop_prefetch): Only test
862         flag_prefetch_loop_arrays for being nonzero.
863         * common.opt (floop-optimize, frerun-loop-opt): Resurrected as
864         no-ops.
865         (fprefetch-loop-arrays-rtl): Removed.
866         (flag_prefetch_loop_arrays): Do not specify the value.
867
868         * doc/passes.texi: Update documentation of loop optimizer
869         passes.
870         * doc/invoke.texi (-fstrength-reduce, -fprefetch-loop-arrays-rtl,
871         -frerun-loop-opt): Remove.
872
873 2006-02-26  Richard Guenther  <rguenther@suse.de>
874
875         PR tree-optimization/26421
876         * tree-ssa-alias.c (find_used_portions): Don't treat parameters
877         in function calls that are ADDR_EXPRs as using the whole structure.
878
879 2006-02-26  Steven Bosscher  <stevenb.gcc@gmail.com>
880
881         * common.opt (-floop-optimize, -frerun-loop-opt): Remove.
882         * tree-pass.h (pass_loop_optimize): Remove.
883         * passes.c (pass_loop_optimize): Never run it.
884         * toplev.c (backend_init): Don't call init_loop.
885         * opts.c (flag_loop_optimize_set): Remove.
886         (decode_options): Never set flag_loop_optimize or flag_rerun_loop_opt.
887         (common_handle_option) <OPT_floop_optimize>: Remove.  Don't disable
888         the old RTL loop optimizer when profiling enabled.
889         * predict.c (tree_estimate_probability): Always strip builtin_expect.
890         * cfgcleanup.c (try_forward_edges): Don't avoid killing loop
891         pre-headers for the sake of the old RTL loop optimizer.
892         * Makefile.in: Remove all references to loop.o.
893
894         * doc/invoke.texi: Remove all references to -floop-optimize
895         and -frerun-loop-opt.
896
897 2006-02-26  Zack Weinberg  <zackw@panix.com>
898
899         * doc/md.texi (Machine Constraints): Refer to all files with paths
900         relative to gcc directory (i.e. config/CPU/file).  Add missing
901         @table @code ... @end table to M32C subsection.
902
903 2006-02-26  Roger Sayle  <roger@eyesopen.com>
904
905         * fold-const.c (fold_binary) <BIT_XOR_EXPR>: Fold (X & 1) ^ 1 as
906         (X & 1) == 0.
907         <BIT_AND_EXPR>: Fold (X ^ 1) & 1 and ~X & 1 as (X & 1) == 0.
908
909 2006-02-26  Roger Sayle  <roger@eyesopen.com>
910             James A. Morrison  <phython@gcc.gnu.org>
911
912         PR middle-end/21137
913         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold ((X>>C1)&C2) eq/ne 0,
914         when C2 is a power of two, as either (X&(C2<<C1)) eq/ne 0 if the
915         new constant C2<<C1, or as (X<0) or (X,false) depending upon the
916         signedness of the shift operation.
917
918 2006-02-26  Dorit Nuzman  <dorit@il.ibm.com>
919
920         PR tree-optimization/26359
921         * tree-ssa-alias.c (new_type_alias): Set fields for new tag.
922
923 2006-02-25  Roger Sayle  <roger@eyesopen.com>
924
925         * simplify-rtx.c (simplify_relational_operation_1):  Simplify
926         (X^Y) == 0 as X == Y and (X^Y) != 0 as X != Y.  Simplify (X^Y) == Y
927         as X == 0, and some symmetry related transformations.
928         Simplify (X^C1) == C2 as X == (C1^C2).  Split long comment line.
929
930 2006-02-25  Roger Sayle  <roger@eyesopen.com>
931
932         PR middle-end/23673
933         * fold-const.c (fold_binary) <EQ_EXPR>:  Fold (X^Y) == 0 as X == Y
934         and (X^Y) != 0 as X != Y.  Fold (X^Y) == Y as X == 0, and some
935         symmetry related transformations.  Fold (X^C1) == C2 as
936         X == (C1^C2).
937
938 2006-02-25  Juergen Weigert  <jw@suse.de>
939         Richard Guenther  <rguenther@suse.de>
940
941         * scan-decls.c (scan_decls): Don't fetch new statement after CPP_EOF.
942
943 2006-02-24  Adam Nemet  <anemet@caviumnetworks.com>
944
945         * combine.c (gen_lowpart_or_truncate): Call
946         simplify_gen_unary(TRUNCATE, ...) instead of gen_rtx_TRUNCATE.
947
948 2006-02-24  Diego Novillo  <dnovillo@redhat.com>
949
950         * doc/invoke.texi: Move -fopenmp description to "Options for
951         Code Generation".
952         Remove reference to -lgomp.
953
954 2006-02-24  David Edelsohn  <edelsohn@gnu.org>
955
956         * doc/install.texi: Require GNU tar version 1.14.
957
958 2006-02-24  Geoffrey Keating  <geoffk@apple.com>
959
960         * doc/tm.texi (Run-time Target): Document C_COMMON_OVERRIDE_OPTIONS.
961         * doc/invoke.texi (C++ Dialect Options): Document
962         -fno-use-cxa-get-exception-ptr.
963         * configure.ac: Define DEFAULT_USE_CXA_ATEXIT to 2 not 1.
964         * configure: Regenerate.
965         * c.opt (fuse-cxa-get-exception-ptr): New.
966         * c-opts.c (c_common_handle_option): Handle
967         OPT_fuse_cxa_get_exception_ptr.
968         * c-common.c (flag_use_cxa_atexit): Update documentation.
969         (flag_use_cxa_get_exception_ptr): New.
970         * c-common.h (flag_use_cxa_get_exception_ptr): New.
971         * config/rs6000/darwin.h (SUBTARGET_OVERRIDE_OPTIONS): Improve
972         documentation.
973         (C_COMMON_OVERRIDE_OPTIONS): New.
974
975 2006-02-24  Roger Sayle  <roger@eyesopen.com>
976
977         PR middle-end/24952
978         * combine.c (try_combine): Explicitly check whether GET_CODE is
979         a SET or a CLOBBER, instead on checking that it isn't a USE.
980
981 2006-02-24  Roger Sayle  <roger@eyesopen.com>
982
983         * fold-const.c (fold_comparison): New subroutine of fold_binary
984         containing transformations common to both the equality and
985         ordering relational operators, factored out of fold_binary.
986         (fold_binary): Separate out the equality operators (EQ_EXPR
987         and NE_EXPR) from the ordering operators (LT_EXPR, GT_EXPR,
988         LE_EXPR and GE_EXPR), calling fold_comparison to perform the
989         transformations common to both.
990         (fold_div_compare): Fix latent bugs in the previously unreachable
991         LT_EXPR and GE_EXPR cases.
992
993 2006-02-24  David Edelsohn  <edelsohn@gnu.org>
994
995         * config/rs6000/rs6000.c (rs6000_init_builtins): Change
996         decl libname for clog to __clog on AIX.
997
998         * config/rs6000/xcoff.h (MAX_OFILE_ALIGNMENT): Define.
999
1000 2006-02-24  Alan Modra  <amodra@bigpond.net.au>
1001
1002         PR target/26453
1003         * config/rs6000/rs6000.c (rs6000_output_function_epilogue): Don't
1004         output traceback table for thunks.  Localise rs6000_stack_info call.
1005
1006 2006-02-23  Roger Sayle  <roger@eyesopen.com>
1007             Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
1008
1009         * gthr-posix.h (__gthrw): Fix typo in comment.
1010
1011 2006-02-23  Geoffrey Keating  <geoffk@apple.com>
1012
1013         * doc/cpp.texi (Character sets): Document that we do support
1014         input files to be in any character set.
1015
1016 2006-02-23  Jeff Law  <law@redhat.com>
1017
1018         * tree.h (PHI_ARG_NONZERO): Remove.
1019         * tree-phinodes.c (add_phi_arg): No longer initialize PHI_ARG_NONZERO.
1020         (remove_phi_arg_num): No longer copy PHI_ARG_NONZERO from the old
1021         node to the new node.
1022
1023         PR tree-optimization/26425
1024         * tree-vrp.c (vrp_visit_assignment): If the LHS's type has a NULL
1025         min/max, then assume its varying.
1026
1027 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
1028
1029         PR rtl-optimization/26316
1030         * rtlanal.c (enum may_trap_p_flags): New.
1031         (may_trap_p_1): Take flags instead of unaligned_mems argument.  Ignore
1032         MEM_NOTRAP_P if flags & MTP_AFTER_MOVE.
1033         (may_trap_p, may_trap_or_fault_p): Pass flags to may_trap_p_1.
1034         (may_trap_after_code_motion_p): New function.
1035         * loop-invariant.c (find_identical_invariants): Fix dump formating.
1036         (find_invariant_insn): Use may_trap_after_code_motion_p.
1037         * rtl.h (may_trap_after_code_motion_p): Declare.
1038
1039 2006-02-23  Zdenek Dvorak <dvorakz@suse.cz>
1040
1041         * emit-rtl.c (immed_double_const): Cleanup.
1042
1043 2006-02-23  Daniel Berlin  <dberlin@dberlin.org>
1044
1045         Fix PR tree-optimization/26376
1046         * tree-ssa-structalias.c (find_func_aliases):  Use get_id_for_tree,
1047         remove assert.
1048
1049 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
1050
1051         PR middle-end/26412
1052         * gimplify.c (omp_add_variable): Guard variable size decl test with
1053         DECL_SIZE (decl) check.
1054
1055 2006-02-23  Richard Guenther  <rguenther@suse.de>
1056
1057         PR middle-end/26439
1058         * tree-ssa-structalias.c (find_func_aliases): Handle complex types
1059         like aggregate types.
1060
1061 2006-02-23  Jakub Jelinek  <jakub@redhat.com>
1062
1063         * configure.ac: Add --with{,out}-long-double-128 configure option.
1064         (TARGET_DEFAULT_LONG_DOUBLE_128): New test.
1065         * configure: Rebuilt.
1066         * config.in: Rebuilt.
1067         * doc/install.texi (Options specification): Document
1068         --with-long-double-128.
1069
1070         * config/rs6000/linux.h [TARGET_DEFAULT_LONG_DOUBLE_128]
1071         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
1072         * config/rs6000/linux64.h [TARGET_DEFAULT_LONG_DOUBLE_128]
1073         (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128.
1074
1075 2006-02-23  Aldy Hernandez  <aldyh@redhat.com>
1076
1077         * config/s390/s390.c (override_options): Handle
1078         TARGET_DEFAULT_LONG_DOUBLE_128.
1079
1080         * config/alpha/alpha.c (override_options): Handle
1081         TARGET_DEFAULT_LONG_DOUBLE_128.
1082
1083         * config/sparc/sparc.c (sparc_override_options): Handle
1084         TARGET_DEFAULT_LONG_DOUBLE_128.
1085
1086 2006-02-22  Daniel Jacobowitz  <dan@codesourcery.com>
1087
1088         * Makefile.in (stmp-fixinc): Use real-$(INSTALL_HEADERS_DIR).
1089         (real-install-headers-tar, real-install-headers-cpio)
1090         (real-install-headers-cp): New targets.
1091
1092 2006-02-22  Richard Sandiford  <richard@codesourcery.com>
1093
1094         * tree.h (variable_section): Delete.
1095         * varasm.c (variable_section): Delete.
1096
1097 2006-02-22  Paolo Bonzini  <bonzini@gnu.org>
1098
1099         * install.texi: Add notes on install.texi2html.
1100         (Building in parallel): Do not use footnotes.
1101
1102 2006-02-21  Aldy Hernandez  <aldyh@redhat.com>
1103
1104         PR libgomp/26234
1105         * doc/install.texi (Configuration): Document --disable-libgomp.
1106
1107 2006-02-21  Geoffrey Keating  <geoffk@apple.com>
1108
1109         * config/i386/darwin.h (DWARF2_FRAME_REG_OUT): New.
1110
1111 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
1112
1113         * config/i386/sse.md (vec_extractv2df_1_sse): New.
1114         (vec_extractv2df_0_sse): New.
1115
1116 2006-02-21  Alexandre Oliva  <aoliva@redhat.com>
1117
1118         * defaults.h (CFA_FRAME_BASE_OFFSET): Define.
1119         * config/ia64/ia64.h (CFA_FRAME_BASE_OFFSET): Override.
1120         * doc/tm.texi (CFA_FRAME_BASE_OFFSET): Document.
1121         * dwarf2out.c (build_cfa_loc): New offset parameter.  Add it
1122         to the result of the expression.
1123         (def_cfa_1): Adjust.
1124         (frame_pointer_cfa_offset): Rename to...
1125         (frame_pointer_fb_offset): ... this.  Adjust all uses.
1126         (convert_cfa_to_loc_list): Rename to...
1127         (convert_cfa_to_fb_loc_list): ... this.  New offset parameter.
1128         Pass it on to build_cfa_loc.
1129         (compute_frame_pointer_to_cfa_displacement): Rename to...
1130         (compute_frame_pointer_to_fb_displacement): ... this.  New
1131         offset parameter.  Use it in computation.
1132         (gen_subprogram_die): Compute cfa_fb_offset with the new
1133         macro, and use it to compute the fb loc list and the
1134         displacement.
1135
1136 2006-02-21  Bernd Schmidt  <bernd.schmidt@analog.com>
1137
1138         * config/bfin/predicates.md (cc_operand): Delete predicate.  All uses
1139         replaced with register_operand.
1140         * config/bfin/bfin.c (bfin_register_move_cost): Moving CC to any
1141         non-DREG is expensive.
1142         * config/bfin/bfin.h (FIXED_REGISTERS): CC isn't fixed.
1143         * config/bfin/bfin.md (movbi): Fix constraints and template for moves
1144         involving memory.
1145
1146 2006-02-21  Joseph S. Myers  <joseph@codesourcery.com>
1147
1148         * doc/install.texi2html: Use set -e.
1149
1150 2006-02-21  Richard Sandiford  <richard@codesourcery.com>
1151
1152         * doc/tm.texi (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
1153         (ASM_OUTPUT_SHARED_LOCAL): Delete.
1154         * doc/invoke.texi (-fshared-data): Delete.
1155         * common.opt (fshared-data): Delete.
1156         * varasm.c (asm_emit_uninitialised): Remove flag_shared_data handling.
1157         (assemble_static_space): Remove #if 0 code.
1158         * system.h (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_BSS)
1159         (ASM_OUTPUT_SHARED_LOCAL): Poison.
1160         * config/cris/cris.h: Remove FIXME.
1161
1162 2006-02-21  Paolo Bonzini  <bonzini@gnu.org>
1163
1164         * doc/sourcebuild.texi (Front End Directory): No more double-colon
1165         hooks.
1166
1167 2006-02-21  Jakub Jelinek  <jakub@redhat.com>
1168
1169         PR middle-end/26379
1170         * combine.c (simplify_shift_const_1): Disable nested shifts
1171         optimization for vector shifts.
1172
1173 2006-02-20  Roger Sayle  <roger@eyesopen.com>
1174
1175         PR tree-optimization/26361
1176         * tree-vrp.c (extract_range_from_unary_expr): Handle NEGATE_EXPR
1177         of unsigned integer types.
1178
1179 2006-02-20  Sebastian Pop  <pop@cri.ensmp.fr>
1180
1181         * tree-chrec.c (eq_evolutions_p): New.
1182         * tree-chrec.h (eq_evolutions_p): Declared.
1183         * tree-data-ref.c: Fix formatting.
1184         (datadep_stats, dependence_stats): New.
1185         (gcd): Moved...
1186         (print_direction_vector): New.
1187         (dump_data_dependence_relation): Use print_direction_vector.
1188         (object_analysis, create_data_ref): Handle COMPONENT_REF.
1189         (compute_subscript_distance): Static.
1190         (initialize_data_dependence_relation): Static.  Get the number
1191         of loops surrounding the references from the callers, and initialize
1192         DDR_SIZE_VECT to nb_loops.  Use both base_addr_differ_p and
1193         base_object_differ_p analyzers.
1194         (analyze_ziv_subscript, analyze_siv_subscript_cst_affine,
1195         compute_overlap_steps_for_affine_1_2,
1196         analyze_subscript_affine_affine): Count the classified dependences.
1197         Print a message when a test failed.
1198         (can_use_analyze_subscript_affine_affine): New.
1199         (analyze_siv_subscript): Compute the data dependences on symbolic
1200         scevs that verify can_use_analyze_subscript_affine_affine.
1201         (chrec_steps_divide_constant_p): Returns true, false, or unknown.
1202         (analyze_miv_subscript): Update use of chrec_steps_divide_constant_p.
1203         Handle symbolic scevs.
1204         (analyze_overlapping_iterations): Let symbolic affine scevs to be
1205         analyzed.
1206         (subscript_dependence_tester): Moved...
1207         (build_classic_dist_vector, build_classic_dir_vector): Don't use
1208         lambda_vector_clear on newly allocated vectors.  Get nb_loops from
1209         DDR_SIZE_VECT instead of getting it in parameter.
1210         (subscript_dependence_tester): ... here.  Take as a parameter
1211         loop_nest_depth.  Call build_classic_dist_vector and
1212         build_classic_dir_vector.
1213         (compute_affine_dependence): Update subscript_dependence_tester
1214         parameters.  Update datadep_stats counters.  Call
1215         compute_subscript_distance.
1216         (compute_self_dependence): Save the dist and dir vectors.  Call
1217         compute_subscript_distance.
1218         (ddr_p, DEF_VEC_P(ddr_p), DEF_VEC_ALLOC_P(ddr_p,heap)): Moved...
1219         (compute_all_dependences): Reorder parameters as they were before
1220         conversion to VEC.  Pass nb_loops and loop_nest_depth.  Don't call
1221         compute_subscript_distance.  Update the use of
1222         compute_affine_dependence and initialize_data_dependence_relation.
1223         (find_data_references_in_loop): Handle COMPONENT_REF.
1224         (compute_data_dependences_for_loop): Initialize dependence_stats.
1225         Don't call build_classic_dist_vector and build_classic_dir_vector.
1226         Update the parameters of initialize_data_dependence_relation and
1227         compute_all_dependences.  Print the statistics from datadep_stats.
1228         (analyze_all_data_dependences): Static.  Not used until the pass for
1229         checking the data dependences is contributed.
1230         * tree-data-ref.h (ddr_p, DEF_VEC_P(ddr_p),
1231         DEF_VEC_ALLOC_P(ddr_p,heap)): ... here.
1232         (initialize_data_dependence_relation, compute_affine_dependence,
1233         analyze_all_data_dependences, compute_subscript_distance): Removed.
1234         (print_direction_vector): New.
1235         * lambda.h (gcd): ... here.
1236         (lambda_vector_gcd): Moved here from gcd_vector.
1237         * lambda-code.c (gcd, gcd_vector): Removed.
1238         (lambda_compute_target_space): Use lambda_vector_gcd.  Fix formatting.
1239         * Makefile.in (tree-vect-patterns.o): Depends on TREE_DATA_REF_H.
1240
1241 2006-02-20  Diego Novillo  <dnovillo@redhat.com>
1242
1243         * ipa-type-escape.c: Tidy some comments and white space.
1244         * tree-ssa-operands.c: Likewise.
1245
1246 2006-02-20  Andrew Pinski  <pinskia@physics.uc.edu>
1247
1248         PR tree-opt/25879
1249         * tree-pretty-print.c (debug_tree_chain): Walk the chains.
1250         (dump_decl_name): Do not walk the decl tree chains.
1251         * tree-pass.h (TDF_CHAIN): Remove.
1252
1253 2006-02-20  Rafael Ávila de Espíndola  <rafael.espindola@gmail.com>
1254
1255         * Makefile.in (C): Remove
1256         (PROTO): Remove
1257         (.PHONY): Remove C and PROTO
1258
1259 2006-02-20  Roger Sayle  <roger@eyesopen.com>
1260
1261         PR middle-end/26236
1262         * doc/c-tree.texi (INTEGER_TYPE): Remove reference to the now
1263         deprecated CHAR_TYPE tree code.
1264
1265 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
1266
1267         * configure.ac (target_list): Add install-info, dvi, html.
1268         * configure: Regenerate.
1269
1270         * ada/Make-lang.in, cp/Make-lang.in, fortran/Make-lang.in,
1271         java/Make-lang.in, objc/Make-lang.in, objcp/Make-lang.in,
1272         treelang/Make-lang.in: Do not use double-colon rules.
1273
1274 2006-02-20  Daniel Berlin  <dberlin@dberlin.org>
1275
1276         * tree.h (struct tree_memory_tag): Add is_used_alone member.
1277         (TMT_USED_ALONE): New macro.
1278         * tree-pass.h (PROP_tmt_usage): New property.
1279         (TODO_update_tmt_usage): New todo.
1280         * tree-ssa-alias.c (updating_used_alone): New variable.
1281         (recalculate_used_alone): New function.
1282         (compute_may_aliases): Set updating_used_alone, call
1283         recalculate_used_alone.
1284         * tree-sra.c (pass_sra): Note that this pass destroys
1285         PROP_tmt_usage, and add TODO_update_tmt_usage.
1286         * tree-ssa-forwprop.c (pass_forwprop): Ditto.
1287         * tree-flow.h (updating_used_alone): Prototype.
1288         (recalculate_used_alone): Ditto.
1289         * passes.c (execute_todo): Add code to set updating_used_alone,
1290         and call recalculate.
1291         * tree-ssa-operands.c (add_virtual_operand): Only append bare def
1292         for clobber if used alone, and add assert to verify used_alone
1293         status.
1294
1295 2006-02-20  Angel Nunez Mencias  <anunez@de.ibm.com>
1296
1297         * config/s390/s390.c (legitimize_pic_address): Assertions checking
1298         for non tls symbols added.
1299         (legitimize_address): Do nothing for PLUS expressions if one of the
1300         addends is a tls symbol reference.
1301
1302 2006-02-20  Paolo Bonzini  <bonzini@gnu.org>
1303
1304         PR bootstrap/25476
1305
1306         * Makefile.in (LDFLAGS): Define from autoconf substitution.
1307
1308         * Makefile.in (BOOTSTRAPPING): New.
1309         (quickstrap): New definition if BOOTSTRAPPING=yes.
1310
1311         * Makefile.in (CONFIG_LANGUAGES): Substitute all_selected_languages.
1312         * configure.ac: Substitute all_selected_languages with the languages
1313         that were configured.  For all the other variables except
1314         lang_specs_files, include all the languages in the tree.
1315         * configure: Regenerate.
1316
1317         * Makefile.in (stmp-fixinc): Copy includes from the prev-gcc directory,
1318         if there is one.  Run the commands to run fixincludes in the same
1319         subshell.
1320
1321         * doc/makefile.texi: Document new makefile targets from toplevel bootstrap.
1322         * doc/install.texi: Document exact conventions for searching target tools.
1323         Document --with-build-time-tools.  Document toplevel bootstrap.  Document
1324         something more about building an Ada cross-compiler.  Don't list GNU Make
1325         requirements which affect all platforms.
1326
1327 2006-02-19  Roger Sayle  <roger@eyesopen.com>
1328
1329         PR middle-end/19543
1330         * varasm.c (compare_constant) <INTEGER_CST>: Integer constants are
1331         only equivalent if the have both the same mode and precision.
1332
1333 2006-02-20  Ben Elliston  <bje@au.ibm.com>
1334
1335         * doc/tree-ssa.texi (Interfaces): Describe low vs. high GIMPLE.
1336
1337 2006-02-19  Roger Sayle  <roger@eyesopen.com>
1338             Steven Bosscher  <stevenb.gcc@gmail.com>
1339
1340         * gcse.c (want_to_gcse_p): On STACK_REGS targets, look through
1341         constant pool references to identify stack mode constants.
1342         * rtlanal.c (constant_pool_constant_p): New predicate to check
1343         whether operand is a floating point constant in the pool.
1344         * rtl.h (constant_pool_constant_p): Prototype here.
1345         * loop.c (scan_loop): Avoid hoisting constants from the constant
1346         pool on STACK_REGS targets.
1347         (load_mems): Likewise.
1348         * loop-invariant.c (get_inv_cost): Make hoisting constant pool
1349         loads into x87 registers expensive in terms of register pressure.
1350
1351 2006-02-19  Roger Sayle  <roger@eyesopen.com>
1352
1353         * gthr-posix.h: On Tru64, map __gthr_foo as a weak reference to
1354         __foo and not foo when _PTHREAD_USE_MANGLED_NAMES_ is defined.
1355
1356 2006-02-19  David Edelsohn  <edelsohn@gnu.org>
1357
1358         * config/rs6000/xcoff.h (TARGET_ASM_OUTPUT_ANCHOR): Define.
1359         * config/rs6000/rs6000.c (rs6000_xcoff_asm_output_anchor): Define.
1360
1361 2006-02-19  Daniel Berlin  <dberlin@dberlin.org>
1362
1363         * doc/invoke.texi: Document -fipa-pta.
1364         * common.opt: Add ipa-pta option.
1365         * tree-ssa-structalias.c (DONT_PROPAGATE_WITH_ANYTHING): Removed.
1366         (do_sd_constraint): Enable DONT_PROPAGATE_WITH_ANYTHING code.
1367         (do_ds_constraint): Ditto.
1368         (get_constraint_for): Only add to referenced_vars if
1369         referenced_vars exists.
1370         (insert_into_field_list): Rewrite to do this unsorted.
1371         (insert_into_field_list_sorted): Rename old insert_into_field_list
1372         to this.
1373         (create_function_info_for): Use insert_into_field_list_sorted.
1374         (create_variable_info_for): Rewrite so it uses unsorted version,
1375         since the field list is sorted.
1376         (intra_create_variable_infos): Only add to referenced_vars if
1377         referenced_vars exists.
1378         (ipa_pta_execute): Init heapvars, and delete when done.
1379         * passes.c (init_optimization_passes): Add call to pass_ipa_pta.
1380
1381 2006-02-19  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1382
1383         * doc/install.texi: Add missing `@samp'.
1384
1385 2006-02-18  Andrew Pinski <pinskia@physics.uc.edu>
1386
1387         * config/rs6000/darwin.h (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P):
1388         Use the arguments.
1389
1390 2006-02-18  Mark Wielaard  <mark@klomp.org>
1391
1392         * doc/contrib.texi (Contributors): Add classpath/libgcj hackers
1393         who added new 4.1 features, bug fixes and integration support.
1394
1395 2006-02-18  David Edelsohn  <edelsohn@gnu.org>
1396
1397         PR target/26350
1398         * config/rs6000/rs6000.md (extenddftf2): Force 0.0 to validized
1399         MEM for ABI_V4 pic.
1400
1401 2006-02-18  Richard Sandiford  <richard@codesourcery.com>
1402
1403         * cselib.c (cselib_init): Change RTX_SIZE to RTX_CODE_SIZE.
1404         * emit-rtl.c (copy_rtx_if_shared_1): Use shallow_copy_rtx.
1405         (copy_insn_1): Likewise.  Don't copy each field individually.
1406         Reindent.
1407         * read-rtl.c (apply_macro_to_rtx): Use RTX_CODE_SIZE instead
1408         of RTX_SIZE.
1409         * reload1.c (eliminate_regs): Use shallow_copy_rtx.
1410         * rtl.c (rtx_size): Rename variable to...
1411         (rtx_code_size): ...this.
1412         (rtx_size): New function.
1413         (rtx_alloc_stat): Use RTX_CODE_SIZE instead of RTX_SIZE.
1414         (copy_rtx): Use shallow_copy_rtx.  Don't copy each field individually.
1415         Reindent.
1416         (shallow_copy_rtx_stat): Use rtx_size instead of RTX_SIZE.
1417         * rtl.h (rtx_code_size): New variable.
1418         (rtx_size): Change from a variable to a function.
1419         (RTX_SIZE): Rename to...
1420         (RTX_CODE_SIZE): ...this.
1421
1422         PR target/9703
1423         PR tree-optimization/17106
1424         * doc/tm.texi (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Document.
1425         (Anchored Addresses): New section.
1426         * doc/invoke.texi (-fsection-anchors): Document.
1427         * doc/rtl.texi (SYMBOL_REF_IN_BLOCK_P, SYMBOL_FLAG_IN_BLOCK): Likewise.
1428         (SYMBOL_REF_ANCHOR_P, SYMBOL_FLAG_ANCHOR): Likewise.
1429         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): Likewise.
1430         * hooks.c (hook_bool_mode_rtx_false): New function.
1431         * hooks.h (hook_bool_mode_rtx_false): Declare.
1432         * gengtype.c (create_optional_field): New function.
1433         (adjust_field_rtx_def): Add the "block_sym" field for SYMBOL_REFs when
1434         SYMBOL_REF_IN_BLOCK_P is true.
1435         * target.h (output_anchor, use_blocks_for_constant_p): New hooks.
1436         (min_anchor_offset, max_anchor_offset): Likewise.
1437         (use_anchors_for_symbol_p): New hook.
1438         * toplev.c (compile_file): Call output_object_blocks.
1439         (target_supports_section_anchors_p): New function.
1440         (process_options): Check that -fsection-anchors is only used on
1441         targets that support it and when -funit-at-a-time is in effect.
1442         * tree-ssa-loop-ivopts.c (prepare_decl_rtl): Only create DECL_RTL
1443         if the decl doesn't have one.
1444         * dwarf2out.c: Remove instantiations of VEC(rtx,gc).
1445         * expr.c (emit_move_multi_word, emit_move_insn): Pass the result
1446         of force_const_mem through use_anchored_address.
1447         (expand_expr_constant): New function.
1448         (expand_expr_addr_expr_1): Call it.  Use the same modifier when
1449         calling expand_expr for INDIRECT_REF.
1450         (expand_expr_real_1): Pass DECL_RTL through use_anchored_address
1451         for all modifiers except EXPAND_INITIALIZER.  Use expand_expr_constant.
1452         * expr.h (use_anchored_address): Declare.
1453         * loop-unroll.c: Don't declare rtx vectors here.
1454         * explow.c: Include output.h.
1455         (validize_mem): Call use_anchored_address.
1456         (use_anchored_address): New function.
1457         * common.opt (-fsection-anchors): New switch.
1458         * varasm.c (object_block_htab, anchor_labelno): New variables.
1459         (hash_section, object_block_entry_eq, object_block_entry_hash)
1460         (use_object_blocks_p, get_block_for_section, create_block_symbol)
1461         (use_blocks_for_decl_p, change_symbol_section): New functions.
1462         (get_variable_section): New function, split out from assemble_variable.
1463         (make_decl_rtl): Create a block symbol if use_object_blocks_p and
1464         use_blocks_for_decl_p say so.  Use change_symbol_section if the
1465         symbol has already been created.
1466         (assemble_variable_contents): New function, split out from...
1467         (assemble_variable): ...here.  Don't output any code for
1468         block symbols; just pass them to place_block_symbol.
1469         Use get_variable_section and assemble_variable_contents.
1470         (get_constant_alignment, get_constant_section, get_constant_size): New
1471         functions, split from output_constant_def_contents.
1472         (build_constant_desc): Create a block symbol if use_object_blocks_p
1473         says so.  Or into SYMBOL_REF_FLAGS.
1474         (assemble_constant_contents): New function, split from...
1475         (output_constant_def_contents): ...here.  Don't output any code
1476         for block symbols; just pass them to place_section_symbol.
1477         Use get_constant_section and get_constant_alignment.
1478         (force_const_mem): Create a block symbol if use_object_blocks_p and
1479         use_blocks_for_constant_p say so.  Or into SYMBOL_REF_FLAGS.
1480         (output_constant_pool_1): Add an explicit alignment argument.
1481         Don't switch sections here.
1482         (output_constant_pool): Adjust call to output_constant_pool_1.
1483         Switch sections here instead.  Don't output anything for block symbols;
1484         just pass them to place_block_symbol.
1485         (init_varasm_once): Initialize object_block_htab.
1486         (default_encode_section_info): Keep the old SYMBOL_FLAG_IN_BLOCK.
1487         (default_asm_output_anchor, default_use_aenchors_for_symbol_p)
1488         (place_block_symbol, get_section_anchor, output_object_block)
1489         (output_object_block_htab, output_object_blocks): New functions.
1490         * target-def.h (TARGET_ASM_OUTPUT_ANCHOR): New macro.
1491         (TARGET_ASM_OUT): Include it.
1492         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): New macro.
1493         (TARGET_MIN_ANCHOR_OFFSET, TARGET_MAX_ANCHOR_OFFSET): New macros.
1494         (TARGET_USE_ANCHORS_FOR_SYMBOL_P): New macro.
1495         (TARGET_INITIALIZER): Include them.
1496         * rtl.c (rtl_check_failed_block_symbol): New function.
1497         * rtl.h: Include vec.h.  Declare heap and gc rtx vectors.
1498         (block_symbol, object_block): New structures.
1499         (rtx_def): Add a block_symbol field to the union.
1500         (BLOCK_SYMBOL_CHECK): New macro.
1501         (rtl_check_failed_block_symbol): Declare.
1502         (SYMBOL_FLAG_IN_BLOCK, SYMBOL_FLAG_ANCHOR): New SYMBOL_REF flags.
1503         (SYMBOL_REF_IN_BLOCK_P, SYMBOL_REF_ANCHOR_P): New predicates.
1504         (SYMBOL_FLAG_MACH_DEP_SHIFT): Bump by 2.
1505         (SYMBOL_REF_BLOCK, SYMBOL_REF_BLOCK_OFFSET): New accessors.
1506         * output.h (output_section_symbols): Declare.
1507         (object_block): Name structure.
1508         (place_section_symbol, get_section_anchor, default_asm_output_anchor)
1509         (default_use_anchors_for_symbol_p): Declare.
1510         * Makefile.in (RTL_BASE_H): Add vec.h.
1511         (explow.o): Depend on output.h.
1512         * config/rs6000/rs6000.c (TARGET_MIN_ANCHOR_OFFSET): Override default.
1513         (TARGET_MAX_ANCHOR_OFFSET): Likewise.
1514         (TARGET_USE_BLOCKS_FOR_CONSTANT_P): Likewise.
1515         (rs6000_use_blocks_for_constant_p): New function.
1516
1517 2006-02-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1518
1519         * doc/install.texi (hppa*-hp-hpux*): Update for 4.1.0.
1520
1521 2006-02-18  Andrew Pinski  <pinskia@physics.uc.edu>
1522
1523         PR tree-opt/25680
1524         * tree-ssa-ccp.c (ccp_fold): Handle store CCP of REALPART_EXPR and
1525         IMAGPART_EXPR.
1526
1527 2006-02-18  Diego Novillo  <dnovillo@redhat.com>
1528
1529         * tree-flow.h (struct var_ann_d): Rename field is_alias_tag to
1530         is_aliased.
1531         Update all users.
1532
1533 2006-02-18  Jakub Jelinek  <jakub@redhat.com>
1534
1535         PR middle-end/26334
1536         * stmt.c (decl_overlaps_hard_reg_set_p): Use DECL_HARD_REGISTER
1537         instead of DECL_REGISTER.
1538
1539 2006-02-18  Olivier Hainque  <hainque@adacore.com>
1540
1541         PR ada/13408
1542         * pa.h (WIDEST_HARDWARE_FP_SIZE): Define.
1543
1544 2006-02-18  Joseph S. Myers  <joseph@codesourcery.com>
1545
1546         PR target/24837
1547         * config.gcc: Define UCLIBC_DEFAULT to 0 or 1.
1548         * opth-gen.awk: Handle Var and InverseMask together.
1549         * config/linux.opt (muclibc, mglibc): Use Var(linux_uclibc).
1550         * config/linux.h: Use #if not #ifdef for testing UCLIBC_DEFAULT.
1551         (TARGET_C99_FUNCTIONS): Test OPTION_GLIBC not TARGET_GLIBC.
1552         (CHOOSE_DYNAMIC_LINKER): Give an error for -mglibc and -muclibc
1553         used together.
1554         (UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
1555         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
1556         * config/alpha/linux-elf.h (GLIBC_DYNAMIC_LINKER,
1557         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1558         LINUX_DYNAMIC_LINKER): Define.
1559         (ELF_DYNAMIC_LINKER): Define to LINUX_DYNAMIC_LINKER.
1560         * config/alpha/linux.h (TARGET_C99_FUNCTIONS): Define to
1561         TARGET_GLIBC.
1562         * config/cris/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1563         (CRIS_LINK_SUBTARGET_SPEC): Pass a -dynamic-linker option.
1564         * config/frv/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1565         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1566         (TARGET_C99_FUNCTIONS): Don't define.
1567         * config/i386/linux.h (DYNAMIC_LINKER): Rename to
1568         GLIBC_DYNAMIC_LINKER.
1569         (SUBTARGET_EXTRA_SPECS): Use LINUX_DYNAMIC_LINKER.
1570         * config/i386/linux64.h (GLIBC_DYNAMIC_LINKER32,
1571         GLIBC_DYNAMIC_LINKER64): Define.
1572         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
1573         LINUX_DYNAMIC_LINKER64.
1574         * config/ia64/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1575         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1576         * config/m32r/linux.h (GLIBC_DYNAMIC_LINKE): Define.
1577         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1578         * config/m68k/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1579         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1580         * config/mips/linux64.h (GLIBC_DYNAMIC_LINKER32,
1581         GLIBC_DYNAMIC_LINKER64, GLIBC_DYNAMIC_LINKERN32,
1582         UCLIBC_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKERN32): Define.
1583         (LINK_SPEC): Use LINUX_DYNAMIC_LINKERN32, LINUX_DYNAMIC_LINKER64
1584         and LINUX_DYNAMIC_LINKER32.
1585         * config/mn10300/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1586         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1587         * config/pa/pa-linux.h (GLIBC_DYNAMIC_LINKER): Define.
1588         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1589         * config/rs6000/linux.h (TARGET_C99_FUNCTIONS): Define to
1590         TARGET_GLIBC.
1591         * config/rs6000/linux64.h (TARGET_C99_FUNCTIONS): Likewise.
1592         (GLIBC_DYNAMIC_LINKER32, GLIBC_DYNAMIC_LINKER64,
1593         UCLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER64,
1594         CHOOSE_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1595         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
1596         (LINK_OS_LINUX_SPEC32): Use LINUX_DYNAMIC_LINKER32.
1597         (LINK_OS_LINUX_SPEC64): Use LINUX_DYNAMIC_LINKER64.
1598         * config/rs6000/sysv4.h (GLIBC_DYNAMIC_LINKER,
1599         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1600         LINUX_DYNAMIC_LINKER): Define.
1601         (LINK_OS_LINUX_SPEC): Use LINUX_DYNAMIC_LINKE.
1602         * config/s390/linux.h (GLIBC_DYNAMIC_LINKER32,
1603         GLIBC_DYNAMIC_LINKER64): Define.
1604         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER32 and
1605         LINUX_DYNAMIC_LINKER64.
1606         * config/sh/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1607         (SUBTARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1608         * config/sparc/linux.h (GLIBC_DYNAMIC_LINKER,
1609         UCLIBC_DYNAMIC_LINKER, CHOOSE_DYNAMIC_LINKER,
1610         LINUX_DYNAMIC_LINKER): Define.
1611         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1612         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
1613         * config/sparc/linux64.h (GLIBC_DYNAMIC_LINKER32,
1614         GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER32,
1615         UCLIBC_DYNAMIC_LINKER64, CHOOSE_DYNAMIC_LINKER,
1616         LINUX_DYNAMIC_LINKER32, LINUX_DYNAMIC_LINKER64): Define.
1617         (LINK_ARCH32_SPEC): Use LINUX_DYNAMIC_LINKER32.
1618         (LINK_ARCH64_SPEC, LINK_SPEC): Use LINUX_DYNAMIC_LINKER64.
1619         (TARGET_C99_FUNCTIONS): Define to TARGET_GLIBC.
1620         * config/xtensa/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1621         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1622         * doc/invoke.texi (-muclibc): Remove caveat about supported
1623         targets.
1624
1625 2006-02-17  Grigory Zagorodnev <grigory_zagorodnev@linux.intel.com>
1626
1627         * doc/cpp.texi (__TIMESTAMP__): Document.
1628
1629 2006-02-17  Roger Sayle  <roger@eyesopen.com>
1630
1631         PR middle-end/25600
1632         * fold-const.c (fold_binary): Fold (X >> C) != 0 into X < 0 when
1633         C is one less than the width of X (and related transformations).
1634         * simplify-rtx.c (simplify_unary_operation_1): Transform
1635         (neg (lt x 0)) into either (ashiftrt X C) or (lshiftrt X C)
1636         depending on STORE_FLAG_VALUE, were C is one less then the
1637         width of X.
1638
1639 2006-02-17  Daniel Berlin  <dberlin@dberlin.org>
1640
1641         Fix PR tree-optimization/26341
1642         * tree-ssa-operands.c (add_virtual_operand): Remove assert
1643         about NAME_MEMORY_TAG's.
1644
1645 2006-02-17  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1646
1647         PR target/26255
1648         * pa.md: Create separate HI and QI move patterns for 32-bit and 64-bit
1649         with hardware float support, and software float support.  Add fcpy
1650         alternative to hardware patterns.  Add alternatives to copy between
1651         general and floating-point registers to the 32-bit pattern.
1652         * pa.c (pa_secondary_reload): Don't abort if reload tries to find a
1653         secondary reload to load a QI or HI mode constant into a floating
1654         point register.
1655         * pa32-regs.h (VALID_FP_MODE_P): Allow QImode and HImode.
1656         * pa64-regs.h (VALID_FP_MODE_P): Likewise.
1657
1658 2006-02-17  Andrew Pinski  <pinskia@physics.uc.edu>
1659
1660         PR target/26272
1661         * config/rs6000/darwin.md (load_macho_picbase_si): Add
1662         pc to the pattern.
1663         (load_macho_picbase_di): Likewise.
1664
1665 2006-02-16  Jeff Law  <law@redhat.com>
1666
1667         * tree-vrp.c (set_value_range_to_nonnegative): New function.
1668         (vrp_expr_computes_nonnegative, ssa_name_nonnegative_p): Likewise.
1669         (ssa_name_nonzero_p): Likewise.
1670         (get_value_range): Return NULL if VRP is not running.
1671         (extract_range_from_expr): Fallback to tree_expr_XXX_p if
1672         VRP routines do not discover a range.
1673         (vrp_finalize): Clear VR_VALUE to indicate VRP is not running.
1674         * tree.h (ssa_name_nonzero_p, ssa_name_nonnegative_p): Prototype.
1675         * fold-const.c (tree_expr_nonzero_p): For SSA_NAMEs, query VRP.
1676         (tree_expr_nonnegative_p): Similarly.
1677         * tree-ssa-dom.c (nonzero_vars, nonzero_vars_stack): Remove.
1678         (restore_nonzero_vars_to_original_value): Remove.
1679         (unsafe_associative_fp_binop): Remove.
1680         (tree_ssa_dominator_optimize): Remove initialization and
1681         finalization of nonzero_vars and nonzero_vars_stack.
1682         (dom_opt_initialize_block): No longer push marker on
1683         nonzero_vars_stack.
1684         (dom_opt_finalize_block): No longer call
1685         restore_nonzero_vars_to_original_value.
1686         (record_equivalences_from_phis): No longer look for
1687         nonzero PHI arguments.
1688         (cprop_into_successor_phis): No longer propagate nonzero
1689         property into PHI arguments.  Lose unused argument.  Caller
1690         updated.
1691         (record_equivalences_from_stmt): No longer record nonzero
1692         values for SSA_NAMEs.
1693         (lookup_avail_expr): No longer use nonzero_vars.
1694
1695         * stor-layout.c (set_sizetype): Set TYPE_MAX_VALUE properly
1696         for sizetype when sizetype is unsigned.
1697
1698 2006-02-16  Denis Nagorny <denis_nagorny@linux.intel.com>
1699
1700         PR rtl-optimization/25603
1701         * reload.c (reg_inc_found_and_valid_p): New. Check REG_INC note.
1702         (regno_clobbered_p): Use it. Reusing SETS argument for REG_INC case.
1703         * reload1.c (choose_reload_regs): Added call of regno_clobbered_p
1704         with new meaning of SETS.
1705
1706 2006-02-16  Joseph S. Myers  <joseph@codesourcery.com>
1707
1708         PR target/20353
1709         PR target/24578
1710         PR target/24837
1711         * config/linux.opt: New file.
1712         * config/linux.h (CHOOSE_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER,
1713         LINUX_DYNAMIC_LINKER): Define.
1714         (TARGET_C99_FUNCTIONS): Define depending on TARGET_GLIBC.
1715         * config.gcc (*-*-linux*): Define extra_options.
1716         (*-*-*uclibc*): Define UCLIBC_DEFAULT.
1717         (arm*-*-linux-gnueabi): Change to arm*-*-linux-*eabi.
1718         * config/arm/linux-eabi.h (LINUX_TARGET_INTERPRETER): Change to
1719         GLIBC_DYNAMIC_LINKER.
1720         * config/arm/linux-elf.h (LINUX_TARGET_INTERPRETER): Likewise.
1721         (LINUX_TARGET_LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1722         * config/mips/linux.h (GLIBC_DYNAMIC_LINKER): Define.
1723         (LINK_SPEC): Use LINUX_DYNAMIC_LINKER.
1724         * doc/invoke.texi (GNU/Linux Options): New section.
1725
1726 2006-02-16  Eric Botcazou  <ebotcazou@libertysurf.fr>
1727
1728         * config/sparc/sparc.md (setjmp): Rewrite.
1729         (setjmp_32): Delete.
1730         (setjmp_64): Likewise.
1731
1732 2006-02-16  Daniel Berlin <dberlin@dberlin.org>
1733
1734         * tree-ssa-operands.c (access_can_touch_variable): Fix typo in
1735          previous change.
1736
1737 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
1738
1739         * loop-invariant.c (invariant_for_use, check_dependencies): Fail for
1740         read-write uses.
1741
1742 2006-02-16  Zdenek Dvorak <dvorakz@suse.cz>
1743
1744         PR rtl-optimization/26296
1745         * Makefile.in (loop-invariant.c): Add except.h dependency.
1746         * loop-invariant.c: Include except.h.
1747         (find_invariant_insn): Ignore insns satisfying can_throw_internal.
1748
1749 2005-02-16  Paul Brook  <paul@codesourcery.com>
1750
1751         * reload1.c (emit_reload_insns): Invalidate dead input registers used
1752         for reloads.
1753
1754 2006-02-16  Bernd Schmidt  <bernd.schmidt@analog.com>
1755
1756         PR rtl-optimization/25636
1757         * local-alloc.c (update_equiv_regs): Lose a bogus rtx_equal_p test
1758         when deciding whether an insn is an initializing insn.
1759
1760 2006-02-15 Daniel Berlin  <dberlin@dberlin.org>
1761
1762         * tree.c (init_ttree): Add STRUCT_FIELD_TAG handling.
1763         (tree_code_size): Ditto.
1764         * tree.h (struct tree_memory_tag): Remove parent_var.
1765         (struct tree_struct_field_tag): New.
1766         (SFT_OFFSET): New.
1767         (SFT_SIZE): New.
1768         (union tree_node): Add sft member.
1769         * tree-ssa-alias.c (get_tmt_for): Don't handle TYPE_READONLY
1770         specially here.
1771         (create_sft): Add size and offset argument, set SFT_OFFSET and
1772         SFT_SIZE.
1773         (create_overlap_variables_for): Update for SFT_OFFSET/SFT_SIZE.
1774         * treestruct.def: Add TS_STRUCT_FIELD_TAG.
1775         * tree-flow-inline.h (get_subvar_at): Update for
1776         SFT_OFFSET/SFT_SIZE.
1777         (var_can_have_subvars): Ditto.
1778         (overlap_subvar): Ditto.
1779         * print-tree.c (print_node): Print out interesting things for
1780         SFT's.
1781         * tree-flow.h (struct subvar): Remove offset and size members.
1782         * tree-ssa-operands.c (get_expr_operands): Update for
1783         get_indirect_ref_operands changes.
1784         (get_indirect_ref_operands): Call add_virtual_operand instead of
1785         add_stmt_operand.  Only recurse on base var if requested.
1786         (access_can_touch_variable): New function.
1787         (add_stmt_operand): Split virtual operand handling into ...
1788         (add_virtual_operand): Here.  Add offset, size, and for_clobber
1789         arguments.  Prune alias sets.
1790         (add_call_clobber_ops): Call add_virtual_operand.
1791
1792 2006-02-15  Jakub Jelinek  <jakub@redhat.com>
1793
1794         PR middle-end/26300
1795         * combine.c (make_extraction): Bail out if ORIG_POS is negative.
1796
1797         * tree.h (struct tree_omp_clause): Use OMP_CLAUSE_CODE rather
1798         than TREE_CODE as index into omp_clause_num_ops array.
1799
1800 2006-02-15  Uttam Pawar  <uttamp@us.ibm.com>
1801
1802         PR rtl-optimization/26184
1803         * modulo-sched.c (generate_reg_moves): Free bitmap vector
1804         uses_of_defs.
1805         * modulo-sched.c (sms_schedule): Free g_arr pointer.
1806         * modulo-sched.c (sms_schedule_by_order): Free bitmap pointers
1807         must_precede, must_follow and tobe_scheduled.
1808
1809         PR other/26147
1810         * opts.c (common_handle_option): Free new_option pointer.
1811         * df-core.c (df_analyze): Free postorder pointer.
1812
1813 2006-02-15  Rafael Ávila de Espíndola <rafael.espindola@gmail.com>
1814
1815         * Makefile.in: Fix the examples about the use of stamps
1816
1817 2006-02-15  Michael Matz  <matz@suse.de>
1818
1819         PR middle-end/22275
1820
1821         * stor-layout.c (layout_decl): Zero-width bitfields aren't
1822         influenced by maximum_field_alignment or DECL_PACKED.
1823         (update_alignment_for_field): Ditto.
1824         (place_field): Ditto.
1825         * doc/extend.texi (<#pragma pack>, <Type Attributes>): Document
1826         this behaviour.
1827
1828 2006-02-15  Paolo Bonzini  <bonzini@gnu.org>
1829
1830         * cfg.c (dump_flow_info): Get dump flags as an additional parameter.
1831         (debug_flow_info): Pass it.
1832         * alias.c (rest_of_handle_cfg): Adjust calls to dump_flow_info.
1833         * bb-reorder.c (reorder_basic_blocks): Likewise.
1834         * cfgcleanup.c (rest_of_handle_jump2): Likewise.
1835         * cse.c (rest_of_handle_cse, rest_of_handle_cse2): Likewise.
1836         * flow.c (life_analysis, recompute_reg_usage): Likewise.
1837         * gcse.c (gcse_main, bypass_jumps): Likewise.
1838         * ifcvt.c (rest_of_handle_if_conversion): Likewise.
1839         * local-alloc.c (rest_of_handle_local_alloc): Likewise.
1840         * loop-init.c (rtl_loop_init, rtl_loop_done): Likewise.
1841         * profile.c (compute_branch_probabilities, branch_prob): Likewise.
1842         * rtl.h (dump_flow_info): Adjust prototype.
1843         * tracer.c (rest_of_handle_tracer, tracer): Likewise.
1844         * var-tracking.c (variable_tracking_main): Likewise.
1845         * passes.c (execute_todo): Obey TDF_BLOCKS for RTL.
1846         * tree-dump.c (enable_rtl_dump_file): Enable the details and blocks
1847         options.
1848
1849 2006-02-15  Marcin Dalecki <martin@dalecki.de>
1850
1851         * tree-ssa-dom.c (dom_thread_across_edge): fix tag expression
1852         construction.
1853
1854 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
1855
1856         PR tree-optimization/26209
1857         * tree-ssa-loop.c (pass_scev_cprop): Add TODO_cleanup_cfg.
1858         * tree-cfgcleanup.c (cleanup_control_flow): Remove dead
1859         eh edges.
1860         * tree-cfg.c (replace_uses_by): Do not alter cfg.
1861
1862 2006-02-14  Roger Sayle  <roger@eyesopen.com>
1863
1864         PR middle-end/23670
1865         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Optimize (X&Y)|Y into
1866         (X,Y) and the corresponding symmetry related transformations.
1867         (fold_binary) <BIT_AND_EXPR>: Likewise, optimize (X|Y)&Y into
1868         (X,Y) and its symmetry related transformations.
1869
1870 2006-02-14  Roger Sayle  <roger@eyesopen.com>
1871
1872         * dojump.c (do_compare_rtx_and_jump): Also handle multi-word GTU
1873         and GEU.
1874
1875 2006-02-14  Adam Nemet  <anemet@caviumnetworks.com>
1876
1877         * simplify-rtx.c (simplify_subreg): Combine SUBREG and TRUNCATE.
1878
1879 2006-02-14  Rainer Orth  <ro@TechFak.Uni-Bielefeld.DE>
1880
1881         PR bootstrap/26053
1882         * configure.ac (HAVE_COMDAT_GROUP): Don't assume non-GNU linkers
1883         support COMDAT group.
1884         * configure: Regenerate.
1885
1886 2006-02-14  Roger Sayle  <roger@eyesopen.com>
1887
1888         PR middle-end/26279
1889         PR middle-end/26280
1890         PR middle-end/26283
1891         * dojump.c (do_compare_rtx_and_jump): Handle multi-word LE.
1892
1893 2006-02-14  Daniel Berlin  <dberlin@dberlin.org>
1894
1895         Fix PR tree-optimization/26260
1896
1897         * doc/invoke.texi (max-fields-for-field-sensitive): Document
1898         param.
1899         * params.h (MAX_FIELDS_FOR_FIELD_SENSITIVE): New.
1900         * params.def (PARAM_MAX_FIELDS_FOR_FIELD_SENSITIVE): Ditto.
1901         * tree-ssa-structalias.c (create_variable_info_for): Use
1902         MAX_FIELDS_FOR_FIELD_SENSITIVE.
1903
1904 2006-02-14  Zdenek Dvorak <dvorakz@suse.cz>
1905
1906         * doc/invoke.texi (-fprefetch-loop-arrays, -fprefetch-loop-arrays-rtl):
1907         Document.
1908         * tree-ssa-loop-niter.c (number_of_iterations_ne,
1909         number_of_iterations_lt, number_of_iterations_cond): Remember the shape
1910         of the ending condition.
1911         * tree-ssa-loop-manip.c: Include params.h.
1912         (build_if_stmt, can_unroll_loop_p, determine_exit_conditions,
1913         tree_unroll_loop): New functions.
1914         * tree-pass.h (pass_loop_prefetch): Declare.
1915         * loop.c (rest_of_handle_loop_optimize): Test for
1916         -fprefetch-loop-arrays-rtl.
1917         * tree-scalar-evolution.h (affine_iv): Moved to tree-flow.h.
1918         * timevar.def (TV_TREE_PREFETCH): New timevar.
1919         * tree-ssa-loop.c (tree_ssa_loop_prefetch, gate_tree_ssa_loop_prefetch,
1920         pass_loop_prefetch): New.
1921         * tree-cfgcleanup.c: Include tree-scalar-evolution.h.
1922         (cleanup_tree_cfg_loop): Call scev_reset.
1923         * common.opt (fprefetch-loop-arrays-rtl): Add.
1924         * tree-ssa-loop-prefetch.c: New file.
1925         * tree-outof-ssa.c (struct value_expr_d): Add expr_vars field.
1926         (new_temp_expr_table): Initialize expr_vars.
1927         (free_temp_expr_table): Cleanup expr_vars.
1928         (check_replaceable, find_replaceable_in_bb): Prevent accumulating
1929         expressions from being merged into one.
1930         * tree-flow.h (affine_iv): Moved from tree-scalar-evolution.h.
1931         (struct tree_niter_desc): Add control, bound and cmp fields.
1932         (tree_ssa_prefetch_arrays, can_unroll_loop_p, tree_unroll_loop):
1933         Declare.
1934         * Makefile.in (tree-ssa-loop-prefetch.o): Add.
1935         (tree-cfgcleanup.o): Add SCEV_H dependency.
1936         (tree-ssa-loop-manip.o): Add PARAMS_H dependency.
1937         * passes.c (init_optimization_passes): Add pass_loop_prefetch.
1938
1939 2006-02-14  Richard Guenther  <rguenther@suse.de>
1940
1941         PR tree-optimization/26258
1942         * tree-ssa-structalias.c (find_func_aliases): Handle aggregates
1943         in PHI argument processing.
1944
1945 2006-02-13  Adam Nemet  <anemet@caviumnetworks.com>
1946
1947         * simplify-rtx.c (simplify_unary_operation_1) <TRUNCATE>: Return
1948         new expression in the requested machine mode.
1949
1950 2006-02-13  Roger Sayle  <roger@eyesopen.com>
1951
1952         * optabs.c (expand_abs): Don't call do_jump_by_parts_greater_rtx
1953         directly, instead let do_compare_rtx_and_jump handle this for us.
1954         * expr.c (expand_expr_real_1): Likewise.
1955         * dojump.c (do_jump_by_parts_greater_rtx): Make static.  Move
1956         before do_jump_by_parts_greater.
1957         (do_jump_by_parts_greater): Move after do_jump_by_parts_greater_rtx.
1958         * expr.h (do_jump_by_parts_greater_rtx): Delete prototype.
1959
1960 2006-02-13  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
1961
1962         * pa/quadlib.c: Use defines instead of enum qfcmp_magic.
1963
1964 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
1965
1966         PR rtl-optimization/26235
1967         * loop-invariant.c (hash_invariant_expr_1): Handle 'i' and 'n' formats.
1968         (invariant_expr_equal_p): Handle 'i' and 'n' formats.  Fail on unknown
1969         format.
1970
1971 2006-02-13  Jeff Law  <law@redhat.com>
1972
1973         * tree-vrp.c (extract_range_from_binary_expr): Remove handling of
1974         TRUTH_XOR_EPR.
1975
1976 2006-02-13  Jakub Jelinek  <jakub@redhat.com>
1977
1978         PR middle-end/26092
1979         * gimplify.c (gimplify_call_expr): Don't call get_callee_fndecl
1980         twice if decl is a builtin.  When trying again, call get_callee_fndecl
1981         first to verify it is still a builtin.
1982
1983 2006-02-13  Geoffrey Keating  <geoffk@apple.com>
1984
1985         * dwarf2out.c (base_type_die): Don't add AT_name here.
1986         (subrange_type_die): Don't add AT_name here.
1987         (modified_type_die): Rearrange code flow.  Do add AT_name here.
1988
1989 2006-02-13  Zdenek Dvorak <dvorakz@suse.cz>
1990
1991         PR rtl-optimization/26247
1992         PR rtl-optimization/26248
1993         * loop-invariant.c (may_assign_reg_p): Do not allow VOIDmode.
1994
1995 2006-02-13  Richard Sandiford  <richard@codesourcery.com>
1996
1997         * config/floatunditf.c: Use if __LDBL_MANT_DIG__ == 113.
1998         * config/fixtfdi.c: Likewise.
1999         * config/fixunstfdi.c: Likewise.
2000         * config/floatditf.c: Likewise.
2001
2002 2006-02-13  Roger Sayle  <roger@eyesopen.com>
2003
2004         PR middle-end/24427
2005         * fold-const.c (fold_binary) <BIT_IOR_EXPR>: Transform (X&C1)|C2
2006         into (X,C2) if C1 is a subset of the bits of C2.  Transform
2007         (X&C1)|C2 into X|C2 if C1|C2 == ~0.  Canonicalize (X&C1)|C2 as
2008         (X&(C1&~C2))|C2.
2009         <BIT_AND_EXPR>: Canonicalize (X|C1)&C2 as (X&C2)|(C1&C2).
2010
2011 2006-02-13  Josh Conner  <jconner@apple.com>
2012
2013         PR target/25376
2014         * varasm.c (function_section): Check for section name before
2015         calling select_section on targets that define
2016         USE_SELECT_SECTION_FOR_FUNCTIONS.  On other targets, use
2017         unlikely_text_section instead of hot_function_section if
2018         first_function_block_is_cold.
2019
2020 2006-02-13  J"orn Rennecke <joern.rennecke@st.com>
2021
2022         PR middle-end/25335
2023         * reload1.c (gen_reload): Also use find_replacement in UNARY_P case.
2024
2025 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
2026
2027         PR rtl-optimization/26222
2028         * function.c (assign_stack_temp_for_type): Do not reuse stack slots
2029         after tree->rtl expansion.
2030         * loop-invariant.c (move_invariant_reg): Use force_operand on rhs
2031         before passing it to emit_move_insn.
2032
2033 2006-02-12  Gabriel Dos Reis  <gdr@integrable-solutions.net>
2034
2035         * doc/invoke.texi (-Write-strings): Document that it is enabled by
2036         default.
2037         * c.opt (-Wwrite-strings): Declare variable warn_write_strings.
2038         Clarify documentation.
2039         * c-common.h (warn_write_strings): Remove.
2040         * c-common.c (warn_write_strings): Likewise.
2041         * c-opts.c (c_common_init_options): Enable -Wwrite-strings by
2042         default for C++.
2043
2044 2006-02-12  Roger Sayle  <roger@eyesopen.com>
2045
2046         PR middle-end/25724
2047         * dojump.c (do_jump): Call do_compare_rtx_and_jump.
2048         (do_jump_parts_zero_rtx): New function renamed from
2049         do_jump_parts_equality_rtx.  Made static.  Add a mode argument.
2050         (do_jump_parts_equality_rtx): New function split out from
2051         do_jump_parts_equality.  Old implementation renamed as above.
2052         Call do_jump_parts_zero_rtx if either operand is zero.
2053         (do_jump_parts_equality): Call do_jump_parts_equality_rtx to
2054         do all of the heavy lifting.
2055         (do_compare_rtx_and_jump): Handle multi-word comparisons by
2056         calling either do_jump_by_parts_greater_rtx or
2057         do_jump_by_parts_equality_rtx.
2058         * expr.h (do_jump_by_parts_equality_rtx): Remove prototype.
2059         * expmed.c (do_cmp_and_jump): Now multi-word optimization has
2060         moved to do_compare_rtx_and_jump, call it directly.
2061         * stmt.c (do_jump_if_equal): Remove static prototype.  Add a
2062         mode argument.  Call do_compare_rtx_and_jump.
2063         (emit_case_nodes): Update calls to do_jump_if_equal.
2064
2065 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
2066
2067         PR rtl-optimization/26225
2068         * loop-invariant.c (may_assign_reg_p): Do not allow BLKmode operands.
2069
2070 2006-02-12  Zdenek Dvorak <dvorakz@suse.cz>
2071
2072         PR rtl-optimization/26232
2073         * loop-invariant.c (find_invariant_insn): Ignore insns that set CC0.
2074
2075 2006-02-11  Jason Merrill  <jason@redhat.com>
2076
2077         PR tree-opt/24365
2078         * tree-inline.c (declare_return_variable): Just don't use the
2079         modify target if it's a gimple complex reg and the return slot
2080         isn't.
2081
2082 2006-02-11  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
2083
2084         * doc/contrib.texi: Update my entry.
2085
2086 2006-02-10  Geoffrey Keating  <geoffk@apple.com>
2087
2088         * config/i386/darwin.h (DBX_REGISTER_NUMBER): Define.
2089
2090 2006-02-10  Diego Novillo  <dnovillo@redhat.com>
2091
2092         * tree-inline.c (estimate_num_insns_1): Make OpenMP directives
2093         expensive.
2094
2095 2006-02-10  Zdenek Dvorak <dvorakz@suse.cz>
2096
2097         * doc/invoke.texi (-floop-optimize2): Removed.
2098         * toplev.c (process_options): Remove handling of flag_loop_optimize2.
2099         * loop-init.c (gate_handle_loop2): Do not test flag_loop_optimize2.
2100         Test flag_branch_on_count_reg only if HAVE_doloop_end.
2101         * common.opt (floop-optimize2): Removed.
2102         (fmove-loop-invariants): Enabled by default.
2103
2104 2006-02-10  Sebastian Pop  <pop@cri.ensmp.fr>
2105
2106         * tree-if-conv.c (combine_blocks): Free the result of
2107         get_loop_exit_edges.
2108
2109 2006-02-10  Jeff Law  <law@redhat.com>
2110
2111         * fold-const.c (tree_expr_nonzero_p): Fix thinko.
2112
2113         PR tree-optimization/26213
2114         * tree-ssa-threadedge.c (simplify_control_stmt_condition): Do not
2115         loop trying to follow SSA_NAME_VALUE chains.
2116
2117 2006-02-10  Richard Guenther  <rguenther@suse.de>
2118
2119         * tree-dfa.c (get_ref_base_and_extent): When computing maxsize
2120         deal with structures that end in implicitly variable sized arrays.
2121
2122 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
2123
2124         PR rtl-optimization/24762
2125         * df-scan.c (df_bb_refs_record): Record correct registers defined on
2126         eh edges.
2127
2128 2006-02-09  Zdenek Dvorak <dvorakz@suse.cz>
2129
2130         * tree-ssa-loop-ivopts.c (struct loop_data, loop_data): Removed.
2131         (struct ivopts_data): Add regs_used field.
2132         (tree_ssa_iv_optimize_init): Do not allocate aux fields for loops.
2133         (ivopts_global_cost_for_size, determine_set_costs): Use data->regs_used
2134         instead of loop_data->regs_used;
2135         (free_loop_data): Do not free aux fields for loops.
2136         (tree_ssa_iv_optimize): Do not pass loops to tree_ssa_iv_optimize_init
2137         and tree_ssa_iv_optimize_finalize.
2138
2139 2006-02-09  Kaz Kojima  <kkojima@gcc.gnu.org>
2140
2141         * config/sh/sh.h (FUNCTION_VALUE): Don't handle CHAR_TYPE.
2142
2143 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
2144
2145         PR target/26141
2146         * sh.c (sh_gimplify_va_arg_expr): Don't change the result type when
2147         computing the effective result type.
2148
2149 2006-02-09  J"orn Rennecke <joern.rennecke@st.com>
2150
2151         PR inline-asm/16194
2152         * tree.h (decl_overlaps_hard_reg_set_p) Don't declare.
2153         (tree_overlaps_hard_reg_set): Declare.
2154         * stmt.c (decl_overlaps_hard_reg_set_p): Now static.  Change return
2155         type and signature to match function type expected by walk_tree.
2156         (tree_overlaps_hard_reg_set): New function.
2157         (decl_conflicts_with_clobbers_p): Rename to:
2158         (tree_conflicts_with_clobbers_p).  Take HARD_REG_SET * argument.
2159         Use tree_overlaps_hard_reg_set.  Changed caller.
2160         * doc/tm.texi (TARGET_MD_ASM_CLOBBERS): Replace
2161         decl_overlaps_hard_reg_set_p with tree_overlaps_hard_reg_set.
2162         * cris.c (cris_md_asm_clobbers): Likewise.
2163
2164 2006-02-09  Bernd Schmidt  <bernd.schmidt@analog.com>
2165
2166         * reload1.c (emit_input_reload_insns): Delete code that tries to
2167         inherit using find_equiv_reg.
2168
2169 2006-02-09  Gabriel Dos Reis  <gdr@integrable-solutions.net>
2170
2171         * c-common.h (flag_const_strings): Don't declare.
2172         * c-common.c (flag_const_strings): Remove.
2173         * c.opt (fconst_strings): Remove.
2174         * c-opts.c (c_common_handle_option): Remove <OPT_fconst_strings>.
2175         <OPT_Wwrite_strings>: Don't set flag_const_strings.
2176         (c_common_init_options): Don't set flag_const_strings.
2177         * doc/invoke.texi (-fno-const-strings): Remove documentation.
2178
2179 2006-02-09  Richard Earnshaw  <richard.earnshaw@arm.com>
2180
2181         * arm.md (tlobits_cbranch): New pattern.
2182         * arm.h (arm_select_cc_mode): For thumb, only return CC_Nmode if
2183         testing a single bit.
2184
2185 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
2186
2187         PR tree-opt/26179
2188         * tree-ssa-pre.c (create_component_ref_by_pieces):
2189         Handle RETURN_DECL like VAR_DECL.
2190
2191 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
2192
2193         PR middle-end/26134
2194         * fold-const.c (fold_indirect_ref_1): Fold
2195         "*(foo *)&complexfoo" to "__real__ complexfoo"
2196         and "((foo*)&complexfoo)[1]" to "__imag__ complexfoo".
2197
2198 2006-02-09  Andrew Pinski  <pinskia@physics.uc.edu>
2199
2200         * tree-flow-inline.h (var_can_have_subvars):
2201         Volatile variables should not have subvariables.
2202
2203 2006-02-09  Diego Novillo  <dnovillo@redhat.com>
2204
2205         PR 26180
2206         * tree-vrp.c (vrp_int_const_binop): Detect overflow when
2207         multiplying unsigned values.
2208         Tidy comments.
2209
2210 2006-02-09  Eric Botcazou  <ebotcazou@libertysurf.fr>
2211
2212         * config/sparc/sparc.c (tls_call_delay): Fix oversight.
2213
2214 2006-02-08  Jason Merrill  <jason@redhat.com>
2215
2216         PR c++/25979
2217         * tree.def: Elaborate on difference from MODIFY_EXPR.
2218         * doc/c-tree.texi (INIT_EXPR): Likewise.
2219         * gimplify.c (internal_get_tmp_var): Use INIT_EXPR.
2220         (gimplify_decl_expr, gimplify_init_ctor_eval): Likewise.
2221         (gimplify_target_expr): Likewise.
2222         (gimplify_cond_expr): Remove target handling.
2223         (gimplify_modify_expr): Don't clobber INIT_EXPR code here.
2224         (gimplify_expr): Clobber it here.
2225         (gimplify_modify_expr_rhs): Push assignment into COND_EXPR here.
2226         Do return slot optimization if we have an INIT_EXPR.
2227
2228         PR tree-opt/24365
2229         * tree-inline.c (declare_return_variable): Also clear
2230         DECL_COMPLEX_GIMPLE_REG_P as needed in the modify_dest case.
2231
2232         PR c++/16405
2233         * gimplify.c (gimplify_modify_expr_rhs): Re-enable *& handling.
2234
2235         PR middle-end/22439
2236         * gimplify.c (gimplify_one_sizepos): Fix typo.
2237
2238 2006-02-08  Jeff Law  <law@redhat.com>
2239
2240         PR tree-optimization/21417
2241         * tree-ssa-threadedge.c (thread_across_edge): Reject threading
2242         across a backedge if the control statement at the end of the
2243         block is data dependent on other statements in the same block.
2244         (record_temporary_equivalences_from_stmts): Remove over-conservative
2245         test for threading across backedges.
2246
2247         * tree-ssa-dce.c (remove_dead_statement): When removing a dead
2248         control statement, handle all three special cases in the same
2249         manner as they all have the same desired solution.  No longer
2250         special case edge flag updating when the post dominator is
2251         the exit block.
2252
2253 2006-02-08  Roger Sayle  <roger@eyesopen.com>
2254
2255         * tree.def (CHAR_TYPE): Remove.
2256         * dbxout.c (dbxout_type): Delete dead handling of CHAR_TYPE.
2257         * dwarf2out.c (base_type_die, is_base_type): Likewise.
2258         (gen_type_die) <ARRAY_TYPE>: Remove handling of CHAR_TYPE arrays.
2259         (gen_string_type_die): Delete unreachable function.
2260
2261         * tree-pretty-print.c (dump_generic_node): Don't handle CHAR_TYPE.
2262         * tree.c (build_int_cst_wide, type_contains_placeholder_1,
2263         type_hash_eq, variably_modified_type_p, walk_type_fields): Likewise.
2264         * tree.h (NUMERICAL_TYPE_CHECK, INTEGRAL_TYPE_P): Likewise.
2265         * builtins.c (type_to_class): Likewise.
2266         * fold-const.c (fold_convert, build_range_check,
2267         merge_ranges): Likewise.
2268         * expr.c (count_type_elements): Likewise.
2269         * c-pretty-print.c (pp_c_type_specifier): Likewise.
2270         * stor-layout.c (layout_type): Likewise.
2271         * ipa-type-escape.c (type_to_consider): Likewise.
2272         * gimplify.c (omp_firstprivatize_type_sizes,
2273         gimplify_type_sizes): Likewise.
2274         * explow.c (promote_mode): Likewise.
2275         * tree-sra.c (is_sra_scalar_type): Likewise.
2276         * varasm.c (output_constant): Likewise.
2277         * tree-inline.c (remap_type_1): Likewise.
2278         * convert.c (convert_to_pointer, convert_to_real,
2279         convert_to_integer, convert_to_complex): Likewise.
2280
2281 2006-02-08  Daniel Berlin  <dberlin@dberlin.org>
2282
2283         * df-scan.c (df_def_record_1): A set destination may
2284         be a parallel regardless of mode.
2285
2286 2006-02-08  Roger Sayle  <roger@eyesopen.com>
2287
2288         PR target/22209
2289         * config/mips/mips.h (MIN_UNITS_PER_WORD): Don't define for libgcc.
2290         * config/mips/_tilib.c: Remove.
2291         * config/fixtfdi.c: New libgcc source file.
2292         * config/fixunstfdi.c: New source file.
2293         * config/floatditf.c: New source file.
2294         * config/floatunditf.c: New souce file.
2295         * config/mips/t-iris6 (LIB2FUNCS_EXTRA): Include the new source
2296         files above instead of config/mips/_tilib.c.
2297         * config/mips/t-linux64 (LIB2FUNCS_EXTRA): Likewise.
2298
2299 2006-02-08  Jeff Law  <law@redhat.com>
2300
2301         PR tree-optimization/26169
2302         * tree-vrp.c (execute_vrp): Perform any queued SSA updates before
2303         threading jumps.
2304
2305 2006-02-08  Zdenek Dvorak <dvorakz@suse.cz>
2306
2307         * df.h (DF_REG_SIZE): Return the length of the initialized
2308         part of the array.
2309
2310 2006-02-08  Nathan Sidwell  <nathan@codesourcery.com>
2311
2312         * gcc/config/m68k/lb1sf68.asm (__divsf3, __divdf3, __mulsf3,
2313         __muldf3): Return a correctly signed zero.
2314
2315 2006-02-08  Paolo Bonzini  <bonzini@gnu.org>
2316
2317         * passes.c (register_one_dump_file): Accept the current properties
2318         instead of pass number.  Adjust call to dump_register.  Remove
2319         duplicated code.
2320         (register_dump_files): Now a wrapper around...
2321         (register_dump_files_1): ... this one.  Do not modify the pass
2322         structure.
2323         (next_pass_1): Cosmetic fix.
2324         (execute_todo): Keep second parameter only.  Use curr_properties
2325         instead of fetching it from the pass structure.  Check and set
2326         last_verified.
2327         (execute_one_pass): Handle TODO_set_props.  Use curr_properties
2328         instead of fetching it from the pass structure.  Fix calls to
2329         execute_todo.  Update curr_properties and initialize .vcg RTL dump
2330         after running the pass.  Reset last_verified.
2331         * tree-dump.c (dump_files): Renumber consecutively.  Put .cgraph dump
2332         at the beginning.
2333         (FIRST_AUTO_NUMBERED_DUMP): New.
2334         (dump_register): Remove "num" parameter, assign it within the
2335         function.
2336         (get_dump_file_name): Modify template for dumps.
2337         * tree-dump.h (dump_register): Adjust prototype.
2338         * tree-pass.h (enum tree_dump_index): Move cgraph at the beginning.
2339         (PROP_trees): Add PROP_gimple_lomp.
2340         (TODO_set_props): New.
2341         * gimple-low.c (pass_lower_cf): Do not destroy PROP_gimple_lcf.
2342         * tree-eh.c (pass_lower_eh): Do not destroy PROP_gimple_leh.
2343         * cfgexpand.c (pass_expand): Destroy PROP_trees.
2344
2345 2006-02-08  Jakub Jelinek  <jakub@redhat.com>
2346
2347         * config.gcc (sparc-*-linux*): Add sparc/t-linux to tmake_file.
2348         (sparc64-*-linux*): Likewise.
2349         * config/sparc/t-linux64 (SHLIB_MAPFILES): Removed.
2350         * config/sparc/t-linux: New file.
2351         * config/sparc/libgcc-sparc-glibc.ver (__fixtfdi, __fixunstfdi,
2352         __floatditf): Export at GCC_LDBL_3.0 if -m32 -mlong-double-128.
2353         (__divtc3, __multc3, __powitf2): Export at GCC_LDBL_4.0.0 if
2354         -m32 -mlong-double-128.
2355
2356         * config.gcc (alpha*-*-linux*): Add alpha/t-linux to tmake_file.
2357         * config/alpha/t-linux: New file.
2358         * config/alpha/libgcc-alpha-ldbl.ver: New file.
2359
2360         * config/sparc/linux.h (TARGET_OS_CPP_BUILTINS): Define
2361         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128.
2362         (CPP_SUBTARGET_SPEC): Don't add -D__LONG_DOUBLE_128__ here.
2363         * config/sparc/linux64.h (TARGET_OS_CPP_BUILTINS): Define
2364         __LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128 and TARGET_ARCH32.
2365         (CPP_ARCH32_SPEC): Remove.
2366
2367 2006-02-07  Uttam Pawar  <uttamp@us.ibm.com>
2368
2369         PR tree-optimization/26145
2370         * tree-ssa-loop-unswitch.c (tree_unswitch_single_loop): Free
2371         bbs pointer.
2372
2373 2006-02-07  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2374
2375         PR target/26109
2376         * pa.c (attr_length_indirect_call): Don't return length 8 for distances
2377         >= 240000 when generating code for SOM runtime.
2378         (output_indirect_call): Don't use "b,l" instruction for indirect calls
2379         to $$dyncall when generating code for SOM runtime..
2380
2381 2006-02-07  Dirk Mueller  <dmueller@suse.com>
2382
2383         PR c++/18150
2384         * doc/invoke.texi (-Wsequence-point): Update documentation
2385         that -Wsequence-point is implemented for C++ as well.
2386
2387 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
2388
2389         * config/sol26.h (CPP_SUBTARGET_SPEC): Accept -pthread.
2390         * config/sol2.h (CPP_SUBTARGET_SPEC): Likewise.
2391         (LIB_SPEC): Likewise.
2392         * doc/invoke.texi (SPARC options): Document -pthread.
2393
2394 2006-02-07  Geoffrey Keating  <geoffk@apple.com>
2395
2396         * config/i386/i386.c (ix86_delegitimize_address): Support Darwin
2397         PIC addresses.
2398
2399 2006-02-07  Roger Sayle  <roger@eyesopen.com>
2400
2401         * config/sparc/sparc.c (sparc_type_code): Don't handle CHAR_TYPE.
2402         Correct comment describing BOOLEAN_TYPE.
2403
2404 2006-02-07  Dirk Mueller  <dmueller@suse.com>
2405
2406         * c.opt: C++ frontend supports -Wdiv-by-zero.
2407         * c-opts.c (c_common_handle_option): Remove dead case.
2408
2409 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
2410
2411         * configure.ac (TLS assembler check): Do not enable TLS by
2412         default on SPARC/Solaris before version 10.
2413         * configure: Regenerate.
2414
2415 2006-02-07  David Edelsohn  <edelsohn@gnu.org>
2416
2417         * doc/invoke.texi (xl-compat): Document conversion and support
2418         routine names.
2419
2420 2006-02-07  Jeff Law  <law@redhat.com>
2421
2422         * tree-vrp.c (find_conditional_asserts): Update comments.
2423         (simplify_stmt_for_jump_threading): New.
2424         (identify_jump_threads, finalize_jump_threads): New.
2425         (vrp_finalize): Call identify_jump_threads.
2426         (execute_vrp): Call finalize_jump_threads.
2427         * tree-ssa-dom.c (struct opt_stats_d): Remove num_iterations field.
2428         (vrp_element, vrp_data, vrp_element_p): Remove.
2429         (vrp_hash_elt, vrp_variables_stack): Remove.
2430         (vrp_hash, vrp_eq, record_range): Remove.
2431         (simplify_cond_and_lookup_avail_expr): Remove.
2432         (extract_range_from_cond): Remove.
2433         (thread_across_edge): Relocated into tree-ssa-threadedge.c.
2434         (simplify_stmt_for_jump_threading): New.
2435         (dom_thread_across_edge): New wrapper.
2436         (tree_ssa_dominator_optimize): No longer initialize or
2437         finalize any of the VRP datastructures.  Remove iteration
2438         step and simplify as a result of removal of iteration step.
2439         (pass_dominator): Perform a cfg cleanup after DOM.
2440         (dom_opt_finalize_block): Use the new common routines
2441         for threading jumps.  Simplify stack management slightly.
2442         No longer need to unwind VRP state.
2443         (record_equivalences_from_incoming_edge): No longer record
2444         VRP information.
2445         (eliminate_redundant_computations): No longer call
2446         simplify_cond_and_lookup_avail_expr.
2447         * tree-flow.h (potentially_threadable_block): Prototype.
2448         (thread_across_edge): Likewise.
2449         * Makefile.in (OBJS-common):  Add tree-ssa-threadedge.o
2450         (tree-ssa-threadedge.o): Add dependencies.
2451         * tree-ssa-threadedge.c: New file.
2452         * passes.c (init_optimization_passes): Merge PHIs before
2453         calling VRP.  Run VRP again late in the SSA optimization pipeline.
2454
2455 2006-02-07  Eric Botcazou  <ebotcazou@libertysurf.fr>
2456
2457         * df-core.c (df_set_blocks): Do not dereference function pointers.
2458         (df_finish1): Likewise.
2459         (df_hybrid_search_forward): Likewise.
2460         (df_hybrid_search_backward): Likewise.
2461         (df_iterative_dataflow): Likewise.
2462         (df_analyze_problem): Likewise.
2463         (df_compact_blocks): Likewise.
2464         (df_dump): Likewise.
2465         * df-scan.c (df_rescan_blocks): Likewise.
2466         (df_record_entry_block_defs): Likewise.
2467
2468         * genconditions.c (write_conditions): Guard the definition of
2469         'insn_conditions' with the check on GCC version.
2470         (write_writer): Guard the traversal 'insn_conditions' with
2471         the check on GCC version.
2472
2473 2006-02-07  Richard Guenther  <rguenther@suse.de>
2474
2475         PR c++/26140
2476         Revert
2477         2006-01-30  Richard Guenther  <rguenther@suse.de>
2478         PR c++/23372
2479         * gimplify.c (gimplify_target_expr): Handle easy cases
2480         without creating a temporary.
2481
2482 2006-02-07  Pete Steinmetz  <steinmtz@us.ibm.com>
2483
2484         * sched-rgn.c (compute_dom_prob_ps, compute_trg_info): Eradicate
2485         use of float in probability computations.  Use edge probabilities
2486         in place of statically computed probabilities.
2487         (min_spec_prob): New static variable.
2488         (schedule_insns): Initialize it.
2489         (GET_SRC_PROB): Removed.
2490         * doc/invoke.texi (min-sched-prob): Renamed to min-spec-prob.
2491
2492 2006-02-07  Alexandre Oliva  <aoliva@redhat.com>
2493
2494         PR debug/24444
2495         * config/ia64/unwind-ia64.c: Revert last change.
2496         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Removed.
2497         (INCOMING_FRAME_SP_OFFSET): Define.
2498
2499 2006-02-06  Roger Sayle  <roger@eyesopen.com>
2500
2501         * config/ia64/ia64.c (hfa_element_mode): Don't handle CHAR_TYPE.
2502
2503 2006-02-07  Ben Elliston  <bje@au.ibm.com>
2504
2505         * config/i386/i386.c (ix86_scalar_mode_supported_p): New.
2506         (TARGET_SCALAR_MODE_SUPPORTED_P): Define hook.
2507         (classify_argument): Handle SDmode, DDmode, TDmode for 64-bit.
2508         (ix86_return_in_memory): Handle TDmode.
2509         (ix86_libcall_value): Handle SDmode, DDmode, TDmode.
2510         (ix86_value_regno): Return non-TDmode decimal float modes in %eax.
2511
2512 2006-02-06  Richard Sandiford  <richard@codesourcery.com>
2513
2514         * reorg.c (dbr_schedule): Use dump_file instead of file.
2515
2516 2006-02-06  Steve Ellcey  <sje@cup.hp.com>
2517
2518         PR target/25917
2519         * config/ia64/predicates.md (extr_len_operand): New predicate.
2520         * config/ia64/ia64.md (extv): Tighten constraints.
2521         (extzv): Ditto.
2522         (*tbit_and_2): Ditto.
2523         (*tbit_and_3): Ditto.
2524         (*tbit_or_2): Ditto.
2525         (*tbit_or_3): Ditto.
2526         (*bit_zero): Ditto.
2527         (*bit_one): Ditto.
2528
2529 2006-02-06  Andrew Pinski  <pinskia@physics.uc.edu>
2530
2531         PR target/23359
2532         * config/i386/i386.md (trap): Use ASM_SHORT instead of .word.
2533
2534 2006-02-06  Zdenek Dvorak <dvorakz@suse.cz>
2535
2536         * tree-vrp.c (execute_vrp): Do not pass dump argument to.
2537         loop_optimizer_init and loop_optimizer_finalize
2538         * tree-ssa-sink.c (execute_sink_code): Ditto.
2539         * tree-ssa-loop-ch.c (copy_loop_headers): Ditto.
2540         * tree-ssa-loop.c (tree_loop_optimizer_init, tree_ssa_loop_init,
2541         tree_ssa_loop_done): Ditto.
2542         * tree-ssa-pre.c (init_pre, fini_pre): Ditto.
2543         * sched-ebb.c: Include output.h.
2544         (schedule_ebbs): Do not use dump argument.
2545         * value-prof.h (struct profile_hooks): Remove profile_dump_file.
2546         * loop.c (loop_dump_stream): Removed.
2547         (loop_optimize, rest_of_handle_loop_optimize): Do not use dump
2548         argument.
2549         (scan_loop, move_movables, find_and_verify_loops, mark_loop_jump,
2550         emit_prefetch_instructions, loop_bivs_find, loop_bivs_check,
2551         final_biv_value, loop_biv_eliminable_p, loop_givs_rescan,
2552         loop_iterations, strength_reduce, record_biv, record_giv,
2553         final_giv_value, check_final_value, check_ext_dependent_givs,
2554         combine_givs, check_dbra_loop, maybe_eliminate_biv, load_mems,
2555         try_copy_prop, loop_delete_insns, try_swap_copy_prop): Use
2556         dump_file instead of loop_dump_stream.
2557         * ddg.c (print_ddg_edge, print_ddg, vcg_print_ddg): Do not call
2558         argument dump_file.
2559         * reorg.c (dbr_schedule, rest_of_handle_delay_slots): Do not use
2560         dump argument.
2561         * flow.c (life_analysis, rest_of_handle_life): Ditto.
2562         * haifa-sched.c: Include output.h
2563         (schedule_insns, sched_init): Do not use dump argument.
2564         * mode-switching.c (optimize_mode_switching): Ditto.
2565         * modulo-sched.c (stats_file): Removed.
2566         (print_node_sched_params): Do not call argument dump_file.
2567         (sms_schedule_by_order, loop_canon_p, sms_schedule,
2568         rest_of_handle_sms): Do not use dump argument.  Use dump_file instead
2569         of stats_file.
2570         * cse.c (cse_main, rest_of_handle_cse, rest_of_handle_cse2): Do not
2571         use dump argument.
2572         * loop-init.c (loop_optimizer_init, loop_optimizer_finalize,
2573         rtl_loop_init, rtl_loop_done): Ditto.
2574         * global.c (global_alloc, rest_of_handle_global_alloc): Ditto.
2575         * predict.c (combine_predictions_for_bb, tree_estimate_probability):
2576         Ditto.
2577         * recog.c (peephole2_optimize, rest_of_handle_peephole2): Ditto.
2578         * lcm.c (pre_edge_lcm, pre_edge_rev_lcm): Ditto.
2579         * regmove.c (fixup_match_1, fixup_match_2, regmove_optimize,
2580         rest_of_handle_regmove, rest_of_handle_stack_adjustments): Ditto.
2581         * emit-rtl.c (renumber_insns): Ditto.
2582         * cfgexpand.c (add_reg_br_prob_note, expand_gimple_cond_expr,
2583         expand_gimple_basic_block, tree_expand_cfg): Ditto.
2584         * regclass.c (regclass): Ditto.
2585         * tree-outof-ssa.c (analyze_edges_for_bb, perform_edge_inserts,
2586         remove_ssa_form, rewrite_out_of_ssa): Ditto.
2587         * reg-stack.c (compensate_edge, compensate_edges, convert_regs_1,
2588         convert_regs_2, convert_regs, reg_to_stack, rest_of_handle_stack_regs):
2589         Ditto.
2590         * sched-rgn.c (schedule_insns, rest_of_handle_sched): Ditto.
2591         * local-alloc.c (rest_of_handle_local_alloc): Do not pass dump_file
2592         to regclass.
2593         * gcse.c (gcse_file, debug_stderr): Removed.
2594         (gcse_main, bypass_jumps, rest_of_handle_jump_bypass,
2595         rest_of_handle_gcse): Do not use dump argument.
2596         (cprop_jump, cprop_insn, do_local_cprop, cprop, find_implicit_sets,
2597         one_cprop_pass, bypass_block, compute_pre_data, insert_insn_end_bb,
2598         pre_edge_insert, pre_insert_copy_insn, pre_delete, one_pre_gcse_pass,
2599         compute_code_hoist_vbeinout, compute_code_hoist_data,
2600         one_code_hoisting_pass, trim_ld_motion_mems, update_ld_motion_stores,
2601         compute_store_table, build_store_vectors, insert_insn_start_bb,
2602         insert_store, remove_reachable_equiv_notes, replace_store_insn,
2603         store_motion): Use dump_file instead of gcse_file.
2604         * ipa-type-escape.c (type_escape_execute): Remove debugging comments.
2605         * profile.c (profile_dump_file): Removed.
2606         (branch_prob): Use dump_file instead of profile_dump_file.
2607         * ipa.c (cgraph_remove_unreachable_nodes): Do not call argument
2608         dump_file.
2609         * tree-ssa-copy.c (dump_copy_of): Ditto.
2610         * rtl-factoring.c (rtl_seqabstr, rest_of_rtl_seqabstr): Do not pass
2611         dump file to life_analysis.
2612         * bt-load.c (branch_target_load_optimize): Ditto.
2613         * cfgcleanup.c (rest_of_handle_jump2): Do not pass dump_file to
2614         renumber_insns.
2615         * rtl.h (cse_main, renumber_insns, schedule_insns, schedule_ebbs,
2616         regclass, dbr_schedule): Declaration changed.
2617         * sched-int.h (sched_init): Declaration changed.
2618         * tree-profile.c (tree_profile_dump_file): Removed.
2619         (tree_profile_hooks): Removed profile_dump_file hook.
2620         * rtl-profile (rtl_profile_dump_file): Removed.
2621         (rtl_profile_hooks): emoved profile_dump_file hook.
2622         * cfgloop.h (loop_optimizer_init, loop_optimizer_finalize): Declaration
2623         changed.
2624         * c-gimplify.c (c_genericize): Do not call local variable dump_file.
2625         * tree-cfg.c (build_tree_cfg): Ditto.
2626         * Makefile.in (haifa-sched.o, sched-ebb.o): Add output.h dependency.
2627         * basic-block.h (life_analysis, pre_edge_lcm, pre_edge_rev_lcm):
2628         Declaration changed.
2629         * config/sh/sh.c (sh_output_mi_thunk): Do not pass dump_file to
2630         life_analysis and schedule_insns.
2631         * config/m68hc11/m68hc11.c (m68hc11_reorg): Do not pass dump_file to
2632         life_analysis.
2633         * config/mt/mt.c (mt_machine_reorg): Do not pass dump_file to
2634         dbr_schedule.
2635         * config/mips/mips.c (mips_reorg): Ditto.
2636         * config/ia64/ia64.c (ia64_reorg): Do not pass dump_file to
2637         schedule_ebbs.
2638
2639 2006-02-06  Aldy Hernandez  <aldyh@redhat.com>
2640
2641         * config/s390/s390.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
2642         (s390_mangle_fundamental_type): New.
2643         * config/s390/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
2644         Define.
2645
2646         * config/alpha/alpha.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
2647         (alpha_mangle_fundamental_type): New.
2648         * config/alpha/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
2649         Define.
2650
2651         * config/sparc/linux.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
2652         Define.
2653         * config/sparc/linux64.h (TARGET_ALTERNATE_LONG_DOUBLE_MANGLING):
2654         Define.
2655         * config/sparc/sparc.c (TARGET_MANGLE_FUNDAMENTAL_TYPE): Define.
2656         (sparc_mangle_fundamental_type): New.
2657
2658 2006-02-06  Jakub Jelinek  <jakub@redhat.com>
2659
2660         * config.gcc (s390-*-linux*): Add s390/t-linux to tmake_file.
2661         (s390x-*-linux*): Likewise.
2662         * config/s390/t-linux64 (SHLIB_MAPFILES): Removed.
2663         * config/s390/t-linux: New file.
2664
2665 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
2666
2667         * config/i386/sync.md (sync_add<mode>, sync_sub<mode>, sync_ior<mode>,
2668         sync_and<mode>, sync_xor<mode>): Operand 0 is in-out.
2669
2670 2006-02-06  Daniel Berlin  <dberlin@dberlin.org>
2671
2672         * tree-ssa-pre.c (bb_value_sets_t): Add antic_safe_loads.
2673         (ANTIC_SAFE_LOADS): New macro.
2674         (find_or_generate_expression): Add prototype.
2675         (set_contains_value): Allow null set for sake of not always having
2676         to allocate ANTIC_SAFE_LOADS.
2677         (phi_translate): Move placement of AGGREGATE_TYPE_P check.
2678         Allow COMPONENT_REF too.
2679         (valid_in_set): Allow COMPONENT_REF.
2680         Check ANTIC_SAFE_LOADS too.
2681         (compute_antic_aux): Print out ANTIC_SAFE_LOADS.
2682         (compute_rvuse_and_antic_safe): Add ANTIC_SAFE computation, and
2683         rename.
2684         (can_PRE_operation): Add COMPONENT_REF.
2685         (create_component_ref_by_pieces): New function.
2686         (create_expression_by_pieces): Use create_component_ref_by_pieces.
2687         (insert_aux): Move AGGREGATE_TYPE_P check here.
2688         (compute_avail): Set bb local stmt uids.
2689         (pass_pre): Use TODO_update_ssa_only_virtuals.
2690
2691 2006-02-06  Ben Elliston  <bje@au.ibm.com>
2692
2693         * configure.ac: Unconditionally disable decimal float by default.
2694         * configure: Regenerate.
2695
2696 2006-02-06  Ben Elliston  <bje@au.ibm.com>
2697
2698         * read-rtl.c (read_name): Terminate reading on EOF.
2699
2700 2006-02-06  Ben Elliston  <bje@au.ibm.com>
2701
2702         * dfp.c (decimal_real_arithmetic): Change second argument type
2703         from int to enum tree_code. Do not always return true, but now
2704         return result of any call to decimal_do helper functions.
2705         * dfp.h (decimal_real_arithmetic): Update prototype.
2706
2707 2006-02-05  Eric Botcazou  <ebotcazou@libertysurf.fr>
2708
2709         * config/sparc/sol2-bi.h (SPARC_DEFAULT_CMODEL): Set to CM_MEDMID.
2710
2711 2006-02-05  Andrew Pinski  <pinskia@physics.uc.edu>
2712
2713         PR tree-opt/25251
2714         * tree-cfg.c (cleanup_dead_labels): Also don't remove
2715         forced labels.
2716
2717 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
2718
2719         * tree-vrp.c (cfg_loops): Removed.
2720         (adjust_range_with_scev, vrp_visit_assignment, execute_vrp):
2721         Use current_loops instead of cfg_loops.  Pass flags to
2722         loop_optimizer_init.
2723         * cfgloopmanip.c (fix_loop_structure): Update only available
2724         information.
2725         * tree-ssa-loop-ch.c (copy_loop_headers): Pass flags to
2726         loop_optimizer_init.
2727         * modulo-sched.c (build_loops_structure): Removed.
2728         (sms_schedule): Use loop_optimizer_init.
2729         * loop-init.c (loop_optimizer_init): Use flags to determine
2730         which properties of loops to prepare.
2731         (rtl_loop_init): Pass flags to loop_optimizer_init.
2732         * tree-ssa-sink.c (execute_sink_code): Ditto.
2733         * tree-ssa-loop.c (tree_loop_optimizer_init): Ditto.
2734         * tree-ssa-pre.c (init_pre): Ditto.
2735         * cfgloop.h (LOOPS_NORMAL): New.
2736         (loop_optimizer_init): Declaration changed.
2737
2738 2006-02-05  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2739
2740         * pa/x-ada-hpux10, pa/t-pa-hpux10, pa/t-pa-hpux11: New files.
2741         * config.gcc (hppa[12]*-*-hpux10*): Use pa/t-pa-hpux10 instead of
2742         pa/t-pa.
2743         * config.gcc (hppa[12]*-*-hpux11*): Use pa/t-pa-hpux11 instead of
2744         pa/t-pa.
2745         * config.host (hppa*-*-hpux10*): Use pa/x-ada-hpux10 instead of
2746         pa/x-ada.
2747         * pa/t-pa-hpux: Add lib2funcs.asm and quadlib.c rules.
2748         * pa/t-pa64: Delete quadlib.c rule.
2749         * pa/x-ada: Revert last change.
2750         * pa/t-pa: Revert last change.  Delete quadlib.c rule.
2751
2752 2006-02-04  Zdenek Dvorak <dvorakz@suse.cz>
2753
2754         PR rtl-optimization/26087
2755         * rtlanal.c (canonicalize_condition): Do not cross basic block
2756         boundaries.
2757
2758 2006-02-04  Alexandre Oliva  <aoliva@redhat.com>
2759
2760         PR debug/24444
2761         * config/ia64/ia64.c: Include debug.h.
2762         (MAX_ARTIFICIAL_LABEL_BYTES): New.
2763         (ia64_label_after_insn, ia64_dwarf2out_def_steady_cfa): New.
2764         (IA64_CHANGE_CFA_IN_EPILOGUE): Define to 0.
2765         (process_epilogue, process_set, process_for_unwind_directive):
2766         Output unwind info only if requested.  Add CFA info if requested.
2767         Add new arguments as needed.  Adjust callers.
2768         * config/ia64/ia64.h (ARG_POINTER_CFA_OFFSET): Override
2769         incorrect default.
2770         (DWARF2_FRAME_INFO): Define to zero.
2771         * config/ia64/unwind-ia64.c: Remove code that compensated for
2772         the CFA offset error fixed above.
2773         * config/ia64/t-ia64 (ia64.o): Depend on debug.h.
2774         * dwarf2out.c (DWARF2_FRAME_INFO): Define default.
2775         (dwarf2out_do_frame): Require nonzero DWARF2_UNWIND_INFO for
2776         -funwind-tables and -fexceptions to enable frame info.
2777         (dwarf2out_frame_init): Define initial CFA even if
2778         DWARF2_UNWIND_INFO is disabled.  Call initial_return_save if
2779         DWARF2_UNWIND_INFO is nonzero, not just defined.
2780         (dwarf2out_frame_finish): Output non-EH call frame info only
2781         if DWARF2_FRAME_INFO is nonzero.
2782         (convert_cfa_to_loc_list,
2783         compute_frame_pointer_to_cfa_displacement): Define even if
2784         unwind info is not supported.
2785         (gen_subprogram_die): Use the above unconditionally.  Remove
2786         legacy alternate code.
2787         * toplev.c (compile_file): Compile in call to
2788         dwarf2out_frame_finish if DWARF2_DEBUGGING_INFO is defined.
2789         (lang_dependent_init): Ditto for dwarf2out_frame_init.
2790
2791 2006-02-04  David Edelsohn  <edelsohn@gnu.org>
2792             Jakub Jelinek  <jakub@redhat.com>
2793
2794         * config/rs6000/rs6000.c (rs6000_mangle_fundamental_type): Mangle
2795         IBM extended float format long double as "g" on powerpc*-linux.
2796
2797 2006-02-03  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
2798
2799         PR target/25926
2800         * pa/x-ada (X_ADA_CFLAGS): Define _X_HPUX10 on HP-UX 10.
2801         * pa/t-pa (TARGET_LIBGCC2_CFLAGS): Define _T_HPUX10 on HP-UX 10.
2802
2803 2006-02-03  Jason Merrill  <jason@redhat.com>
2804
2805         PR c++/25979
2806         * gimplify.c (gimplify_modify_expr_rhs): Disable *& optimization for now.
2807
2808         PR middle-end/25977
2809         * gimplify.c (gimplify_modify_expr_rhs): It's not always safe to do RVO
2810         on the return slot if it's an NRV.
2811
2812 2006-02-03  Zdenek Dvorak <dvorakz@suse.cz>
2813
2814         * tree-ssa-loop-ivopts.c (enum use_type): Remove USE_OUTER.
2815         (dump_use, add_derived_ivs_candidates, determine_use_iv_cost,
2816         rewrite_use): Do not handle USE_OUTER.
2817         (find_interesting_uses_outer_or_nonlin, find_interesting_uses_outer,
2818         add_iv_outer_candidates, may_replace_final_value,
2819         determine_use_iv_cost_outer, rewrite_use_outer): Removed.
2820         (find_interesting_uses_op): Functionality of
2821         find_interesting_uses_outer_or_nonlin moved here.
2822         (find_interesting_uses_outside): Use find_interesting_uses_op.
2823
2824 2006-02-03  Alan Modra  <amodra@bigpond.net.au>
2825
2826         PR target/25960
2827         * config/rs6000/darwin-ldouble.c (__gcc_qadd): Preserve -0.0 result.
2828
2829 2006-02-03  Andreas Krebbel  <krebbel1@de.ibm.com>
2830             Ulrich Weigand  <uweigand@de.ibm.com>
2831
2832         PR target/25864
2833         * config/s390/2084.md ("x_fsimptf", "x_fmultf", "x_fdivtf",
2834         "x_floadtf", "x_ftrunctf", "x_ftruncdf"): New insn reservations.
2835         * config/s390/fixdfdi.h (__fixunstfdi, __fixtfdi): New functions.
2836         * config/s390/s390.c (struct processor_costs): Add mxbr, sqxbr, dxbr
2837         and dxr fields.
2838         (z900_cost, z990_cost, z9_109_cost): Values for the new fields added.
2839         (s390_rtx_costs): Use the new fields to calculate rtx costs.
2840         (s390_secondary_input_reload_class, s390_secondary_output_reload_class):
2841         Define secondary reloads for TFmode moves.
2842         (constant_modes): Add TFmode.
2843         (NR_C_MODES): Set to 8.
2844         * config/s390/s390.h (TARGET_CPU_CPP_BUILTINS): Add __LONG_DOUBLE_128__
2845         builtin define.
2846         (LONG_DOUBLE_TYPE_SIZE): Set to 128 or 64.
2847         (LIBGCC2_LONG_DOUBLE_TYPE_SIZE, WIDEST_HARDWARE_FP_SIZE): Define.
2848         (HARD_REGNO_NREGS, HARD_REGNO_MODE_OK, CLASS_MAX_NREGS,
2849         CANNOT_CHANGE_MODE_CLASS): Consider TFmode.
2850         * config/s390/s390.md ("type" attribute): Add fsimptf, floadtf, fmultf,
2851         fdivtf, fsqrttf, ftrunctf, ftruncdf as possible values.
2852         (FPR mode macro): Add TFmode.
2853         (DSF mode macro): New.
2854         (<de>, <dee> mode attributes): Removed.
2855         (<xde>, <xdee>, <RRe>, <RXe>, <Rf> mode attributes): New.
2856         ("*cmp<mode>_ccs_0", "*cmp<mode>_ccs_0_ibm", "*cmp<mode>_ccs",
2857         "*cmp<mode>_ccs_ibm", "fix_trunc<FPR:mode><GPR:mode>2_ieee",
2858         "floatdi<mode>2", "floatsi<mode>2_ieee", "*add<mode>3",
2859         "*add<mode>3_cc", "*add<mode>3_cconly", "*add<mode>3_ibm",
2860         "*sub<mode>3", "*sub<mode>3_cc", "*sub<mode>3_cconly",
2861         "*sub<mode>3_ibm", "*mul<mode>3_ibm", "*fmadd<mode>", "*fmsub<mode>",
2862         "*div<mode>3", "*div<mode>3_ibm", "*neg<mode>2_cc",
2863         "*neg<mode>2_cconly", "*neg<mode>2", "*neg<mode>2_ibm",
2864         "*abs<mode>2_cc", "*abs<mode>2_cconly", "*abs<mode>2",
2865         "*abs<mode>2_ibm", "*negabs<mode>2_cc", "*negabs<mode>2_cconly",
2866         "*negabs<mode>2", "sqrt<mode>2"):
2867         Changed <de> to <xde>. R constraint replaced by <Rf>.
2868         ("*mul<mode>3"): Changed <dee> to <xdee>. R constraint replaced by
2869         <Rf>.
2870         ("fix_trunc<FPR:mode>di2"): 'FPR:' removed.
2871         ("*fmadd<mode>", "*fmsub<mode>"): FPR mode replaced by DSF.
2872         ("*movtf_64", "*movtf_31"): New insn definitions followed by 5
2873         splitters.
2874         ("movtf", "reload_outtf", "reload_intf", "trunctfdf2", "trunctfsf2",
2875         "extenddftf2", "extendsftf2"): New expanders.
2876         ("*trunctfdf2_ieee", "*trunctfdf2_ibm", "*trunctfsf2_ieee",
2877         "*trunctfsf2_ibm", "*extenddftf2_ieee", "*extenddftf2_ibm",
2878         "*extendsftf2_ieee", "*extendsftf2_ibm"): New insn patterns.
2879         * config/s390/s390.opt (mlong-double-128, mlong-double-64):
2880         New options.
2881         * config/s390/t-crtstuff (TARGET_LIBGCC2_CFLAGS): Macro defined.
2882         * config/s390/libgcc-glibc.ver (__divtc3, __multc3, __powitf2,
2883         __fixtfti, __fixunstfti, __floattitf, __fixtfdi, __fixunstfdi,
2884         __floatditf): Add a GCC_4.1.0 symbol version tag.
2885         * doc/invoke.texi (-mlong-double-128, -mlong-double-64): Document
2886         the new options.
2887
2888 2006-02-02  Andrew Pinski  <pinskia@physics.uc.edu>
2889
2890         PR target/25377
2891         * config/i386/i386.c (ix86_function_ok_for_sibcall):
2892         Use targetm.binds_local_p instead of TREE_PUBLIC.
2893
2894 2006-02-02  Roger Sayle  <roger@eyesopen.com>
2895
2896         * tree.h (TYPE_STRING_FLAG): Document that this field may be used
2897         on INTEGER_TYPEs to indicate that it denotes a character type.
2898         * tree.c (build_common_tree_nodes): Set TYPE_STRING_FLAG on
2899         signed_char_type_node, unsigned_char_type_node and char_type_node.
2900         * dwarf2out.c (base_type_die): Treat CHAR_TYPE identically to
2901         INTEGER_TYPE.  Use TYPE_STRING_FLAG to decide whether to emit
2902         a DW_ATE_[un]signed_char instead of a DW_ATE_[un]signed.
2903
2904 2006-02-02  Zdenek Dvorak <dvorakz@suse.cz>
2905             Daniel Berlin  <dberlin@dberlin.org>
2906
2907         * tree-tailcall.c (arg_needs_copy_p): New function.
2908         (eliminate_tail_call): Use arg_needs_copy_p.
2909         (tree_optimize_tail_calls_1): Ditto. Also call add_virtual_phis.
2910         (add_virtual_phis): New function.
2911
2912 2006-02-02  Jakub Jelinek  <jakub@redhat.com>
2913
2914         * config/sparc/sparc.c (sparc_output_scratch_registers): Use
2915         #ignore instead of #scratch for %g7 .register directive.
2916
2917 2006-02-02  Andreas Tobler  <a.tobler@schweiz.ch>
2918
2919         * config/sparc/freebsd.h (ENDFILE_SPEC): Add space to separate
2920         object files.
2921
2922 2006-02-02  Bernd Schmidt  <bernd.schmidt@analog.com>
2923
2924         * flow.c (calculate_global_regs_live): Assert that there aren't any
2925         EDGE_FAKE edges.
2926
2927 2006-02-02  Paolo Bonzini  <bonzini@gnu.org>
2928
2929         * tree-flow-inline.h (bsi_after_labels): Rewrite, return
2930         what its name says.
2931         * lambda-code.c (perfect_nestify): Use bsi_insert_before on
2932         bsi_after_labels iterator.
2933         * tree-if-conv.c (find_phi_replacement_condition,
2934         replace_phi_with_cond_modify_expr): Likewise.
2935         * tree-scalar-evolution.c (scev_const_prop): Likewise.
2936         * tree-ssa-loop-ivopts.c (compute_phi_arg_on_exit): Likewise.
2937
2938 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
2939
2940         * tree-inline.c (copy_tree_r): Also copy OMP_CLAUSE nodes.
2941
2942 2006-02-02  Diego Novillo  <dnovillo@redhat.com>
2943
2944         PR 25990
2945         * tree-cfg.c (move_block_to_fn): Clear out the basic block
2946         array after growing it.
2947
2948 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
2949
2950         PR middle-end/24901
2951         * fold-const.c (fold_checksum_tree): Change type of buf.
2952
2953 2006-02-01  Bernd Schmidt  <bernd.schmidt@analog.com>
2954
2955         * reload.c (push_secondary_reload): Initialize t_icode.
2956
2957 2006-02-01  Jakub Jelinek  <jakub@redhat.com>
2958
2959         * config/rs6000/sysv4.h (SUBTARGET_OVERRIDE_OPTIONS): For
2960         -msoft-float -mlong-double-128 only issue a warning, but don't
2961         swich to DFmode long double.
2962
2963 2006-02-01  Hans-Peter Nilsson  <hp@axis.com>
2964
2965         * cse.c (fold_rtx) <case RTX_COMM_COMPARE, RTX_COMPARE>: When arg1
2966         has a constant equivalent, iterate over equivalents for arg0,
2967         calling simplify_relational_operation and if there's a result
2968         cheaper than X, apply fold_rtx and return the result.
2969
2970 2006-02-01  Jan Hubicka  <jh@suse.cz>
2971
2972         * opts.c (no_unit_at_a_time_default): New global variable.
2973         (decode_options): Use it.
2974         * opts.h (no_unit_at_a_time_default): Declare.
2975
2976 2006-02-01  Paul Brook  <paul@codesourcery.com>
2977
2978         * function.c (assign_parm_setup_reg): Use function argument promotion
2979         rules.
2980         * expr.c (expand_expr_real_1): Use function argument promotion rules
2981         for PARM_DECLs.
2982
2983 2006-02-01  Steve Ellcey  <sje@cup.hp.com>
2984
2985         * gcc.c (process_command): Change j to 'unsigned int'.
2986
2987 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
2988
2989         PR middle-end/26001
2990         * expr.c (expand_expr_real_1) <case ARRAY_REF>:
2991         Use the corrected index for the character
2992         out of the string constant.
2993
2994 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
2995
2996         * mode-switching.c (optimize_mode_switching): Fix size
2997         allocated for bb_info[n_entities].
2998
2999 2006-01-31  Andrew Pinski  <pinskia@physics.uc.edu>
3000
3001         * gcc.c (main): Correct type that is allocated for
3002         explicit_link_files.
3003
3004 2006-01-31  Jakub Jelinek  <jakub@redhat.com>
3005
3006         * config/s390/s390.c (init_alignment_context): Set
3007         ALIAS_SET_MEMORY_BARRIER on the MEM.
3008         * config/sparc/sparc.c (sparc_expand_compare_and_swap_12): Likewise.
3009
3010 2006-01-31  Uttam Pawar  <uttamp@us.ibm.com>
3011
3012         PR middle-end/25933
3013         * loop-unroll.c (unroll_loop_runtime_iterations): Free
3014         dom_bbs pointer.
3015         * tree-ssa-live.c (type_var_init): Allocate bitmap after
3016         call to tpa_init.
3017
3018 2006-01-31  Marcin Dalecki  <martin@dalecki.de>
3019
3020         * tree-vrp.c: Use XNEW/XCNEW allocation wrappers.
3021         * regrename.c: Ditto.
3022         * tree-ssa-loop-im.c: Ditto.
3023         * tree-dump.c: Ditto.
3024         * tree-complex.c: Ditto.
3025         * genrecog.c: Ditto.
3026         * tree-ssa-threadupdate.c: Ditto.
3027         * tracer.c: Ditto.
3028         * java/class.c: Ditto.
3029         * java/jcf-parse.c: Ditto.
3030         * java/resource.c: Ditto.
3031         * java/except.c: Ditto.
3032         * java/jvspec.c: Ditto.
3033         * java/jcf-write.c: Ditto.
3034         * java/jcf-path.c: Ditto.
3035         * java/gjavah.c: Ditto.
3036         * java/zextract.c: Ditto.
3037         * java/jcf-io.c: Ditto.
3038         * java/jcf.h: Ditto.
3039         * java/buffer.c: Ditto.
3040         * java/lang.c: Ditto.
3041         * java/parse-scan.y: Ditto.
3042         * java/lex.c: Ditto.
3043         * java/lex.h: Ditto.
3044         * cfgloopmanip.c: Ditto.
3045         * postreload-gcse.c: Ditto.
3046         * tree-ssa-loop-manip.c: Ditto.
3047         * postreload.c: Ditto.
3048         * tree-ssa-loop-ch.c: Ditto.
3049         * loop.c: Ditto.
3050         * ipa-cp.c: Ditto.
3051         * cppspec.c: Ditto.
3052         * diagnostic.c: Ditto.
3053         * final.c: Ditto.
3054         * genoutput.c: Ditto.
3055         * gcc.c: Ditto.
3056         * cfghooks.c: Ditto.
3057         * cfgloopanal.c: Ditto.
3058         * objc/objc-act.c: Ditto.
3059         * gcov.c: Ditto.
3060         * genextract.c: Ditto.
3061         * genautomata.c: Ditto.
3062         * pretty-print.c: Ditto.
3063         * genemit.c: Ditto.
3064         * cgraphunit.c: Ditto.
3065         * flow.c: Ditto.
3066         * df-scan.c: Ditto.
3067         * haifa-sched.c: Ditto.
3068         * dominance.c: Ditto.
3069         * dbxout.c: Ditto.
3070         * tree-ssa-loop-ivopts.c: Ditto.
3071         * df-core.c: Ditto.
3072         * mode-switching.c: Ditto.
3073         * modulo-sched.c: Ditto.
3074         * graph.c: Ditto.
3075         * ipa-pure-const.c: Ditto.
3076         * cse.c: Ditto.
3077         * fix-header.c: Ditto.
3078         * web.c: Ditto.
3079         * tree-stdarg.c: Ditto.
3080         * ipa-utils.c: Ditto.
3081         * loop-init.c: Ditto.
3082         * ipa-inline.c: Ditto.
3083         * cfganal.c: Ditto.
3084         * global.c: Ditto.
3085         * alloc-pool.c: Ditto.
3086         * dwarf2out.c: Ditto.
3087         * opts.c: Ditto.
3088         * genattrtab.c: Ditto.
3089         * tree-ssa-loop-ivcanon.c: Ditto.
3090         * predict.c: Ditto.
3091         * timevar.c: Ditto.
3092         * lcm.c: Ditto.
3093         * fortran/gfortranspec.c: Ditto.
3094         * regmove.c: Ditto.
3095         * local-alloc.c: Ditto.
3096         * langhooks.c: Ditto.
3097         * function.c: Ditto.
3098         * tree-vectorizer.c: Ditto.
3099         * gcse.c: Ditto.
3100         * ipa-type-escape.c: Ditto.
3101         * alias.c: Ditto.
3102         * tree-if-conv.c: Ditto.
3103         * profile.c: Ditto.
3104         * ipa.c: Ditto.
3105         * tree-data-ref.c: Ditto.
3106         * loop-unroll.c: Ditto.
3107         * treelang/treetree.c: Ditto.
3108         * calls.c: Ditto.
3109         * bt-load.c: Ditto.
3110         * ggc-common.c: Ditto.
3111         * except.c: Ditto.
3112         * coverage.c: Ditto.
3113         * cselib.c: Ditto.
3114         * tree-cfgcleanup.c: Ditto.
3115         * tree-ssa-pre.c: Ditto.
3116         * cfgcleanup.c: Ditto.
3117         * loop-invariant.c: Ditto.
3118         * loop-iv.c: Ditto.
3119         * ipa-prop.c: Ditto.
3120         * print-tree.c: Ditto.
3121         * conflict.c: Ditto.
3122         * ggc-page.c: Ditto.
3123         * sched-deps.c: Ditto.
3124         * regclass.c: Ditto.
3125         * tree-object-size.c: Ditto.
3126         * combine.c: Ditto.
3127         * bb-reorder.c: Ditto.
3128         * resource.c: Ditto.
3129         * var-tracking.c: Ditto.
3130         * cfgloop.c: Ditto.
3131         * df-problems.c: Ditto.
3132         * reg-stack.c: Ditto.
3133         * tlink.c: Ditto.
3134         * gccspec.c: Ditto.
3135         * sched-rgn.c: Ditto.
3136         * tree-ssa-structalias.c: Ditto.
3137         * tree-ssa-reassoc.c: Ditto.
3138         * config/darwin-c.c: Ditto.
3139         * config/darwin.c: Ditto.
3140         * config/arm/arm.c: Ditto.
3141         * cfgrtl.c: Ditto.
3142         * collect2.c: Ditto.
3143         * reload1.c: Ditto.
3144
3145 2006-01-31  Nicolas Pitre  <nico@cam.org>
3146
3147         * arm.md (smaxsi3): Make aware of smax_m1.
3148         (smax_m1): New.
3149
3150 2006-01-31  Nathan Sidwell  <nathan@codesourcery.com>
3151
3152         * gcc/config/m68k/lb1sf68.asm: Use moveq to load small constants.
3153
3154 2006-01-31  Richard Guenther  <rguenther@suse.de>
3155
3156         * doc/invoke.texi (-msselibm): Document.
3157         * target.h (expand_library_builtin): New target hook.
3158         * builtins.c (expand_builtin): Use expand_library_builtin.
3159         (default_expand_library_builtin): New function.
3160         * gcc.c (LINK_GCC_MATH_SPEC): Define.
3161         (LINK_COMMAND_SPEC): Handle %(link_gcc_math).
3162         (link_gcc_math_spec): Declare.
3163         (static_specs): Add link_gcc_math_spec.
3164         * expr.h (default_expand_library_builtin): Declare.
3165         * target-def.h (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
3166         (TARGET_INITIALIZER): Add TARGET_EXPAND_LIBRARY_BUILTIN.
3167         * config/i386/i386.h: Provide LINK_GCC_MATH_SPEC.
3168         * config/i386/i386.opt (msselibm): New target option.
3169         * config/i386/i386.c (ix86_builtin_function_variants): New array.
3170         (ix86_init_sse_abi_builtins): New function.
3171         (ix86_expand_library_builtin): Likewise.
3172         (TARGET_EXPAND_LIBRARY_BUILTIN): Define.
3173         (override_options): Handle error conditions wrt -msselibm.
3174         (ix86_builtins): Add function codes for SSE2 ABI builtins.
3175         (ix86_init_builtins): Call ix86_init_sse_abi_builtins.
3176         * doc/extend.texi (__builtin_sse2_*): Document new target specific
3177         builtins.
3178
3179 2006-01-31  Richard Guenther  <rguenther@suse.de>
3180         Paolo Bonzini  <bonzini@gnu.org>
3181
3182         * doc/install.texi (--disable-libgcc-math): Document.
3183
3184 2006-01-30  Marcin Dalecki  <martin@dalecki.de>
3185
3186         * expr.h (expand_normal): new inline function.
3187         * builtins.c: use it, use EXPAND_NORMAL explicitely.
3188         * dojump.c: use it.
3189         * dwarf2out.c: use it.
3190         * expr.c: use it.
3191         * calls.c: use it.
3192         * expmed.c: use it.
3193         * except.c: use it.
3194         * config/sparc/sparc.c: use it.
3195         * config/i386/i386.c: use it.
3196         * config/rs6000/rs6000.c: use it.
3197         * config/arm/arm.c: use it.
3198         * config/mips/mips.c: use it.
3199         * stmt.c: use it, use EXPAND_NORMAL explicitely.
3200
3201 2006-01-30  Roger Sayle  <roger@eyesopen.com>
3202
3203         * config/i386/cygwin.h (GCC_DRIVER_HOST_INITIALIZATION): Cast
3204         argv to the appropriate type.
3205
3206 2006-01-30  Zdenek Dvorak <dvorakz@suse.cz>
3207
3208         * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Remove
3209         unreachable code.
3210
3211 2006-01-30  Ulrich Weigand  <uweigand@de.ibm.com>
3212
3213         PR target/26018
3214         * config/s390/s390.c (struct machine_function): New flag
3215         decomposed_literal_pool_addresses_ok_p.
3216         (s390_reorg): Set it before final stage of literal pool transforms.
3217         (s390_decompose_address): Only accept displacements of the form
3218         (minus (label_ref ...) (label_ref ...)) if that flag is set.
3219
3220 2006-01-30  Carlos O'Donell  <carlos@codesourcery.com>
3221
3222         * optabs.c (prepare_cmp_insn): If unbaised and unsigned then bias
3223         the comparison routine return.
3224
3225 2006-01-30  Michael Matz  <matz@suse.de>
3226
3227         * global.c (find_reg): Only evict for global regs.
3228         Take n_refs into account and dump more info.
3229
3230 2006-01-30  J"orn Rennecke <joern.rennecke@st.com>
3231
3232         PR target/14798:
3233         * sh.c (pragma_interrupt, trap_exit, sp_switch): Remove variable.
3234         (pragma_trap, pragma_nosave_low_regs): Likewise.
3235         (current_function_anonymous_args): Likewise.
3236         (sh_deferred_function_attributes): New variable.
3237         (sh_deferred_function_attributes_tail): Likewise.
3238         (print_operand): For '@', look up trap_exit attribute.
3239         (calc_live_regs): Look up trapa_handler attribute.  For trapa
3240         handlers, save/restore fpscr, but don't do any other
3241         interrupt-specific saves.
3242         Don't save r0..r7 if the nosave_low_regs attribute is in effect.
3243         Fix check for partially saved registers to check for SHmedia.
3244         (sh_expand_prologue, sh_expand_epilogue): Look up sp_switch attribute.
3245         (sh_output_function_epilogue): Don't clear any of the removed
3246         variables.
3247         (sh_insert_attributes): Don't check pragma_interrupt.
3248         Insert deferred attributes.  Check that interrupt attribute is
3249         present for other attributes that require its presence.
3250         (sh_attribute_table): Add new attributes trapa_handler and
3251         nosave_low_regs.
3252         (sh_handle_sp_switch_attribute, sh_handle_trap_exit_attribute):
3253         Don't check for pragma_interrupt.  Don't store argument.
3254         * sh.h (pragma_interrupt, sp_switch): Don't declare.
3255         (sh_deferred_function_attributes): Declare.
3256         (sh_deferred_function_attributes_tail): Likewise.
3257         * sh.md (sp_switch_1): Add operand.  Change generator caller.
3258         (sh_pr_interrupt, sh_pr_trapa, sh_pr_nosave_low_regs): Remove.
3259         (*return_i): Don't use when trap_exit attribute is in effect.
3260         (*return_trapa): New insn pattern.
3261         * sh-c.c: New file.
3262         * config.gcc (sh[123456ble]*-* | sh-*-*): New trailer stanza,
3263         setting c_target_objs and cxx_target_objs.
3264         * t-sh: Add rule for sh-c.o.
3265
3266 2006-01-30  Richard Guenther  <rguenther@suse.de>
3267
3268         PR c++/23372
3269         * gimplify.c (gimplify_target_expr): Handle easy cases
3270         without creating a temporary.
3271
3272 2006-01-30  Nathan Sidwell  <nathan@codesourcery.com>
3273
3274         * vec.h (safe_grow): Remove duplicated line.
3275
3276 2006-01-29  Diego Novillo  <dnovillo@redhat.com>
3277
3278         PR 25874
3279         * omp-low.c (execute_expand_omp): Move CFG cleanup code ...
3280         (expand_omp): ... here.
3281         (expand_omp_parallel): Only remove barriers for combined
3282         parallel+workshare constructs.
3283
3284 2006-01-29  Eric Botcazou  <ebotcazou@adacore.com>
3285
3286         Revert
3287
3288         2005-11-09  Eric Botcazou  <ebotcazou@adacore.com>
3289         * tree.c (build_qualified_type): Chain the new type to the original
3290         type's TYPE_NEXT_PTR_TO or TYPE_NEXT_REF_TO linked lists if it is
3291         a POINTER_TYPE or a REFERENCE_TYPE respectively.
3292         (build_pointer_type_for_mode): Only return unqualified types.
3293         (build_reference_type_for_mode): Likewise.
3294
3295 2006-01-29  Gabriel Dos Reis  <gdr@integgrable-solutions.net>
3296
3297         * configure.ac (cxx_compat_warn): Set if -Wc++-compat is supported.
3298         * Makefile.in (CXX_COMPAT_WARN): Define.
3299         * configure: Regenerate.
3300
3301 2006-01-29  Dorit Nuzman  <dorit@il.ibm.com>
3302
3303         PR tree-opt/25911
3304         * tree-vect-patterns.c (vect_recog_dot_prod_pattern): Change assert
3305         to an if check.
3306
3307 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
3308
3309         * toplev.c: Fix thinko.
3310
3311 2006-01-29  Gabriel Dos Reis  <gdr@integrable-solutions.net>
3312             Marcin Dalecki  <martin@dalecki.de>
3313
3314         * toplev.c (floor_log2, exact_log2): Don't define if __cplusplus.
3315         (push_srcloc): Use XNEW.
3316         (init_asm_output, default_get_pch_validity): Use XNEWVEC.
3317
3318 2006-01-29  Kenneth Zadeck <zadeck@naturalbridge.com>
3319
3320         * df-core.c (df_set_blocks): Deleted all variable.
3321
3322 2006-01-28  Ian Lance Taylor  <ian@airs.com>
3323
3324         * cgraphunit.c (cgraph_assemble_pending_functions): Call
3325         cgraph_output_pending_asms.
3326
3327 2006-01-28  Zack Weinberg  <zackw@panix.com>
3328
3329         * c.opt: Add -W(no-)overlength-strings.
3330         * doc/invoke.texi: Document it.
3331         * c-opts.c (c_common_handle_option): -pedantic implies
3332         -Woverlength-strings, if not explicitly disabled already.
3333         (c_common_post_options): -Woverlength-strings defaults to off, and
3334         is always off for C++.
3335         * c-common.c (fix_string_type): Issue warning about strings longer
3336         than is portable only if warn_overlength_strings.  Rearrange code
3337         a little for clarity.
3338         * configure.in: Check for -Wno-overlength-strings as well before
3339         enabling -pedantic in stage 1.
3340         * Makefile.in (STRICT2_WARN): Add -Wno-overlength-strings.
3341         (gcc.o-warn, insn-automata.o-warn, build/gencondmd.o-warn): Delete.
3342
3343         * genconditions.c (write_header, write_one_condition)
3344         (write_conditions, write_writer): Consolidate very long strings
3345         that were broken up to fit in C89 portable limit.  Don't use
3346         printf when fputs will do.
3347
3348 2006-01-28  Adam Nemet  <anemet@caviumnetworks.com>
3349
3350         * combine.c (simplify_comparison <AND>): Check
3351         TRULY_NOOP_TRUNCATION before start using a subreg.
3352
3353         * config/mips/mips.md (*branch_zero<mode>,
3354         *branch_zero<mode>_inverted, *branch_equality<mode>,
3355         *branch_equality<mode>_inverted, *branch_equality<mode>_mips16):
3356         Remove mode check from comparisons.
3357
3358 2006-01-28  Kenneth Zadeck <zadeck@naturalbridge.com>
3359
3360         * config/mips/mips-protos.h (mips_set_live_on_entry): Deleted.
3361
3362 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
3363
3364         * expmed.c (const_mult_add_overflow_p): Remove.
3365         * expr.h: Remove the prototype for const_mult_add_overflow_p.
3366
3367         * recog.c (validate_replace_rtx_subexp): Remove.
3368         * recog.h: Remove the prototype for
3369         validate_replace_rtx_subexp.
3370
3371         * integrate.h: Remove the prototype for
3372         copy_decl_for_inlining.
3373         * rtl.h: Remove the prototype for mark_constant_function.
3374         * tree-vectorizer.h: Remove the prototype for
3375         vect_strip_conversion.
3376
3377         * modulo-sched.c (create_partial_schedule,
3378         free_partial_schedule, reset_partial_schedule): Make them
3379         static.
3380
3381         * hooks.c (hook_bool_rtx_int_false): Remove.
3382         * hooks.h: Remove the prototype for hook_bool_rtx_int_false.
3383
3384 2006-01-28  David Edelsohn  <edelsohn@gnu.org>
3385
3386         * config/rs6000/aix43.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
3387         and -mlong-double-128 are incompatible.
3388         * config/rs6000/aix52.h (SUBTARGET_OVERRIDE_OPTIONS): Same.
3389         * config/rs6000/t-aix43 (LIB2FUNCS_EXTRA): Add ppc64-fp.c.
3390         (TARGET_LIBGCC2_CFLAGS): Define.
3391         * config/rs6000/t-aix52 (LIB2FUNCS_EXTRA): Same.
3392         (TARGET_LIBGCC2_CFLAGS): Same.
3393         * config/rs6000/ppc64-fp.c: Compile for 64-bit AIX.
3394
3395 2006-01-28  Kazu Hirata  <kazu@codesourcery.com>
3396
3397         PR c/19606.
3398         * c-typeck.c (build_binary_op): Perform implicit casts of
3399         operands before shortening them.
3400
3401         * cfgloopmanip.c (split_loop_bb): Remove.
3402         * cfgloop.h: Remove the prototype for split_loop_bb.
3403
3404         * cfgloop.c (flow_loop_outside_edge_p): Remove.
3405         * cfgloop.h: Remove the prototype for
3406         flow_loop_outside_edge_p.
3407
3408         * emit-rtl.c (init_virtual_regs): Make it static.
3409         * function.h: Remove the prototype for init_virtual_regs.
3410
3411         * recog.c (peephole2_optimize): Make it static.
3412         * recog.h: Remove the prototype for peephole2_optimize.
3413
3414 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
3415
3416         * df-scan.c (df_record_entry_block_defs): Check if
3417         INCOMING_RETURN_ADDR_RTX is defined.
3418
3419 2006-01-27  Daniel Berlin  <dberlin@dberlin.org>
3420             Kenneth Zadeck <zadeck@naturalbridge.com>
3421
3422         PR rtl-optimization/24762
3423         * doc/tm.texi: Added TARGET_EXTRA_LIVE_ON_ENTRY.
3424         * targhooks.c (hook_void_bitmap): New hook prototype.
3425         * targhoohs.h (hook_void_bitmap): Ditto.
3426         * bitmap.h (bitmap_head_def): Moved to coretypes.h.
3427         * coretypes.h (bitmap_head_def): Moved from bitmap.h.
3428         * target.h (live_on_entry): New function pointer.
3429         * df-scan.c (df_all_hard_regs): Removed.
3430         (df_scan_dump, df_hard_reg_init): Removed df_all_hard_regs.
3431         (df_scan_free_internal): Added df->entry_block_defs.
3432         (df_scan_alloc): Ditto.
3433         (df_scan_dump): Ditto.
3434         (df_uses_record): Plumbed flag field properly thru calls.
3435         Record EH_RETURN_DATA_REGNO in eh blocks unconditionally.
3436         This part fixes PR24762.
3437         (df_bb_refs_record): Added code to make the frame and arg
3438         pointers live in EH blocks.
3439         (df_refs_record): Added call to df_record_entry_block_defs.
3440         (df_record_entry_block_defs): New function.
3441         * df-core.c: Added comments to describe new artifical defs.
3442         * df.h (DF_REF_DIES_AFTER_THIS_USE): New flag in enum df_ref_flags.
3443         (entry_block_defs): New field in struct df.
3444         (df_all_hard_regs): Deleted.
3445         * target-def.h: Added TARGET_EXTRA_LIVE_ON_ENTRY.
3446         * df-problems.c (df_ru_bb_local_compute_process_def):
3447         Added code to handle artifical defs in the entry to a function.
3448         (df_ru_bb_local_compute): Ditto.
3449         (df_rd_bb_local_compute_process_def):  Ditto.
3450         (df_rd_bb_local_compute): Ditto.
3451         (df_lr_bb_local_compute): Ditto.
3452         (df_ur_bb_local_compute): Ditto.
3453         (df_urec_bb_local_compute):  Ditto.
3454         (df_chain_create_bb):  Ditto.
3455         (df_ur_local_finalize): Removed entry.
3456         (df_urec_init): Ditto.
3457         (df_urec_local_finalize): Ditto.
3458         (df_ri_bb_compute): Added detection of last use of pseudos.
3459         * Makefile.in (df-scan.o): Updated dependencies.
3460         * config/mips/mips-protos.h (mips_set_live_on_entry): Added.
3461         * config/mips/mips.c (mips_set_live_on_entry): Added.
3462         * config/mips/mips.c (TARGET_EXTRA_LIVE_ON_ENTRY): Added value
3463         for target hook.
3464         * dce.c (marked_insn_p): Added code to handle artifical defs.
3465
3466 2006-01-27  H.J. Lu  <hongjiu.lu@intel.com>
3467
3468         * config/i386/emmintrin.h (_mm_cvtsd_f64): Add missing Intel
3469         intrinsic.
3470         (_mm_cvtsi128_si64): Likewise.
3471         (_mm_cvtsd_si64): Likewise.
3472         (_mm_cvttsd_si64): Likewise.
3473         (_mm_cvtsi64_sd): Likewise.
3474         (_mm_cvtsi64_si128): Likewise.
3475         * config/i386/mmintrin.h (_m_from_int64): Likewise.
3476         (_mm_cvtsi64_m64): Likewise.
3477         (_m_to_int64): Likewise.
3478         (_mm_cvtm64_si64): Likewise.
3479         * config/i386/xmmintrin.h (_mm_cvtss_si64): Likewise.
3480         (_mm_cvttss_si64): Likewise.
3481         (_mm_cvtsi64_ss): Likewise.
3482         (_mm_cvtss_f32): Likewise.
3483
3484 2006-01-27  Carlos O'Donell  <carlos@codesourcery.com>
3485
3486         * c-pragma.c (init_pragma) : Call c_register_pragma_with_expansion
3487         for pragma redefine_extname.
3488
3489 2006-01-27  Jakub Jelinek  <jakub@redhat.com>
3490
3491         PR target/25864
3492         * libgcc-std.ver: Add GCC_4.1.0 symbol version.
3493         * config/rs6000/t-linux64 (TARGET_LIBGCC2_CFLAGS): Only append
3494         -mno-minimal-toc to previous content.
3495         (bispecs): Remove goal.
3496         * config/rs6000/ppc64-fp.c: Define TMODES before including fp-bit.h.
3497         * config/rs6000/darwin-ldouble.c: Don't provide _xlq*@GCC_3.4
3498         compatibility aliases on powerpc-*-*gnu*.
3499         * config/rs6000/libgcc-ppc-glibc.ver: New file.
3500         * config/rs6000/t-ppccomm (SHLIB_MAPFILES): Append
3501         libgcc-ppc-glibc.ver on powerpc*-*-*gnu*.
3502         (TARGET_LIBGCC2_CFLAGS): Append -specs=ldblspecs.
3503         (ldblspecs): New goal.
3504         * config/rs6000/t-linux64 (SHLIB_MAPFILES): Removed.
3505         * mklibgcc.in: If $TPBIT is empty, don't compile _sf_to_tf and
3506         _df_to_tf.
3507         * config/fp-bit.h (TMODES): Don't define if none of TFLOAT,
3508         L_sf_to_tf or L_df_to_tf is defined.
3509
3510 2006-01-27  David Edelsohn  <edelsohn@gnu.org>
3511             Alan Modra  <amodra@bigpond.net.au>
3512
3513         PR target/25864
3514         * config/rs6000/linux.h (POWERPC_LINUX): Define.
3515         * config/rs6000/linux64.h (POWERPC_LINUX): Define.
3516         * config/rs6000/darwin-ldouble.c: Build on 32-bit PowerPC.
3517         * config/rs6000/darwin.h (TARGET_IEEEQUAD): Define to zero.
3518         * config/rs6000/aix.h (TARGET_IEEEQUAD): Define to zero.
3519         * config/rs6000/rs6000.c (rs6000_ieeequad): New variable.
3520         (rs6000_override_options): Initialize rs6000_ieeequad.
3521         Initialize TFmode format to ibm_extended_format if not
3522         TARGET_IEEEQUAD.
3523         (rs6000_handle_option): Accept -mabi= ibmlongdouble and
3524         ieeelongdouble.
3525         (rs6000_emit_move): Move !TARGET_IEEEQUAD as two parts.
3526         (rs6000_return_in_memory): Only return IEEEQUAD in memory.
3527         (function_arg_advance): IBM long double passed in two FPRs, not
3528         split.
3529         (function_arg): IBM long double passed in FPRs.
3530         (rs6000_pass_by_reference): Only IEEEQUAD passed by reference.
3531         (rs6000_gimplify_va_arg): IBM long double passed in two FPRs.
3532         Only multireg GPR aligned.
3533         (rs6000_init_libfuncs): Enable IBM long double functions if not
3534         IEEEQUAD.
3535         (rs6000_generate_compare): Use IBM long double compare if not
3536         TARGET_IEEEQUAD.
3537         * config/rs6000/rs6000.h (rs6000_ieeequad): Declare.
3538         (TARGET_IEEEQUAD): Define.
3539         (CANNOT_CHANGE_MODE_CLASS): Any mode larger than doubleword if
3540         not TARGET_IEEEQUAD.
3541         * config/rs6000/rs6000.md: Enable TFmode patterns if
3542         !TARGET_IEEEQUAD.
3543         * config/rs6000/t-ppccomm (LIB2FUNCS_EXTRA): Add darwin-ldouble.c.
3544         * config/rs6000/svr4.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float
3545         and -mlong-double-128 are incompatible.
3546         * doc/invoke.texi (-mabi): Collect options together.  Add
3547         ibmlongdouble and ieeelongdouble.
3548
3549 2006-01-27  Richard Sandiford  <richard@codesourcery.com>
3550
3551         * doc/rtl.texi (SYMBOL_REF_DATA): Adjust documentation for new
3552         opaque type.
3553         * optabs.c (init_one_libfunc): Use SET_SYMBOL_REF_DECL.
3554         * varasm.c (make_decl_rtl, build_constant_desc): Likewise.
3555         (force_const_mem): Use SET_SYMBOL_REF_CONSTANT.
3556         * rtl.h (rtunion_def): Remove rt_ptr.
3557         (X0PTR): Delete.
3558         (SYMBOL_REF_DATA): Use X0ANY instead of X0PTR.
3559         (SET_SYMBOL_REF_DECL, SET_SYMBOL_REF_CONSTANT): New macros.
3560         * config/i386/winnt.c (i386_pe_mark_dllexport)
3561         (i386_pe_mark_dllimport): Use SET_SYMBOL_REF_DECL.
3562
3563 2006-01-27 Gabor Loki <loki@gcc.gnu.org>
3564
3565         * cfgcleanup.c (try_crossjump_to_edge): Fix comment typo.
3566
3567 2006-01-26 Alexandre Oliva  <aoliva@redhat.com>
3568
3569         PR other/24829
3570         PR target/24831
3571         * gthr-dce.h: Do not gthrw-ify pthread_once_init,
3572         pthread_key_delete.  From John David Anglin.  gthrw-ify
3573         pthread_getunique_np only if it it's not a macro.  Delete
3574         UNUSED macro.
3575         (__gthread_objc_condition_allocate, __gthread_objc_condition_deallocate,
3576         __gthread_objc_condition_wait, __gthread_objc_condition_broadcast,
3577         __gthread_objc_condition_signal, __gthread_key_delete): Add
3578         "__attribute__ ((__unused__))" to unused arguments.
3579         (__gthread_recursive_mutex_init_function): Add missing return.
3580         * gthr-dce.h, gthr-tpf.h, gthr-solaris.h, gthr-posix.h,
3581         gthr-posix95.h: Use macro-based approach for name redirection
3582         on targets missing weakref.
3583
3584 2006-01-26  Zack Weinberg  <zackw@panix.com>
3585
3586         * genconditions.c (write_header): In generated code, #ifdef out
3587         all includes and fake declarations, except includes of bconfig.h
3588         and system.h, unless GCC_VERSION >= 3001.  Do not include
3589         gensupport.h in any case.
3590         (write_conditions): Generate a definition of struct c_test.  Add
3591         a comment to the generated #endif.
3592         (write_one_condition): Escape backslashes in string too.
3593         (write_writer): Generated code must escape backslashes and quote
3594         marks (but not newlines) in the strings it writes.
3595         * Makefile.in (build/gencondmd.o): Update dependencies.
3596
3597 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
3598
3599         PR target/25961
3600         * Makefile.in (insn-automata.o): Add header file dependencies.
3601         * genautomata.c: Add includes.
3602
3603 2006-01-26  Steve Ellcey  <sje@cup.hp.com>
3604
3605         PR target/25961
3606         * Makefile.in (insn-automata.o): Add -Wno-error flag.
3607
3608 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
3609
3610         * configure.ac: Expect target tools paths to be passed from the toplevel
3611         and wrap the detection into AS_SET_VAR_IF.  Extract side-effects out of
3612         AS_SET_VAR_IF.
3613         * acinclude.m4 (gcc_AC_TOOL_DIRS, gcc_AC_CHECK_TOOL): Remove.
3614
3615 2006-01-26  Alexandre Oliva  <aoliva@redhat.com>
3616
3617         PR c/25892
3618         * c.opt (Wpointer-sign): Init to -1.
3619         * c-opts.c (c_common_handle_option): Set to 1 on OPT_Wall and
3620         OPT_pedantic, to 0 otherwise.
3621         * doc/invoke.texi: Update.
3622
3623 2006-01-26  Paolo Bonzini  <bonzini@gnu.org>
3624
3625         * config/i386/i386.md (extendsfdf2, extendsfxf2, extenddfxf2): Emit
3626         constants provided by 80387 instructions in the destination mode.
3627
3628 2006-01-26  Richard Guenther  <rguenther@suse.de>
3629             Andrew Pinski  <pinskia@physics.uc.edu>
3630
3631         PR tree-opt/21470
3632         partial PR tree-opt/17064
3633         * tree-ssa-structalias.c (intra_create_variable_infos):
3634         Create heap variables for incoming parameters if
3635         flag_argument_noalias > 1.
3636         (find_what_p_points_to): Look through default defs of
3637         parameter decls.
3638
3639 2006-01-26  Jeff Law  <law@redhat.com>
3640
3641         PR ada/25900
3642         * tree-vrp.c (extract_range_from_assert): When merging a VR_RANGE
3643         with a VR_ANTI_RANGE and the VR_ANTI_RANGE is completely contained
3644         within the VR_RANGE, use the VR_RANGE as the result, not the
3645         VR_ANTI_RANGE.
3646         (adjust_range_with_scev): Reject ranges from SCEV which are out of
3647         bounds for the type.
3648
3649 2006-01-26  Daniel Berlin  <dberlin@dberlin.org>
3650
3651         * tree-ssa-alias.c (maybe_create_global_var): Change
3652         subvar walking to an assertion that we don't have subvar'd variables.
3653
3654 2006-01-26  Andrew Pinski  <pinskia@physics.uc.edu>
3655
3656         PR C/25861
3657         * c-common.c (c_common_truthvalue_conversion) <case ADDR_EXPR>:
3658         Use a new variable, inner.  PARM_DECLs are always non-weak.
3659
3660 2006-01-26  Shantonu Sen  <ssen@opendarwin.org>
3661
3662         * tree.h (OMP_CLAUSE_SUBCODE_CHECK): Add definition for
3663         --disable-checking.
3664
3665 2006-01-26  Adam Nemet  <anemet@caviumnetworks.com>
3666
3667         * config/mips/mips.md (*clear_upper32): New combiner pattern.
3668
3669 2006-01-26  Richard Earnshaw  <richard.earnshaw@arm.com>
3670
3671         * arm.md (smaxsi3, sminsi3): Convert to define_expand.
3672         (smax_insn, smin_insn, smax_0, smin_0): New.
3673
3674 2006-01-26  Hans-Peter Nilsson  <hp@axis.com>
3675
3676         PR target/25947
3677         * config/cris/cris.c (cris_order_for_addsi3): New function.
3678         * config/cris/cris-protos.h: Prototype it.
3679         * config/cris/cris.md (split for "move.S1 [rx=rx+i],ry")
3680         (split for "move.S1 ry,[rx=rx+i]", split for "clear.[bwd] [rx=rx+i]")
3681         (split for "mov(s|u).S1 [rx=rx+i],ry", split for "op.S1 [rx=rx+i],ry")
3682         (split for "op.S1 [rx=rx+i],ry (swapped)")
3683         (split for "op(s|u).S1 [rx=rx+i],ry")
3684         (split for "op(s|u).S1 [rx=rx+i],ry (swapped, plus or bound)"):
3685         Apply cris_order_for_addsi3 when generating addsi3 insns.
3686
3687 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
3688
3689         * tree.h (TREE_RANGE_CHECK): Fix range predicate.
3690         (TREE_BLOCK): Add call to EXPR_CHECK.
3691
3692 2006-01-25  Diego Novillo  <dnovillo@redhat.com>
3693
3694         PR 25886
3695         * tree-dump.c (dequeue_and_dump): Handle OMP_CLAUSE.
3696         * tree-pretty-print.c (dump_omp_clause): Extract from ...
3697         (dump_omp_clauses): ... here.
3698         (dump_generic_node): Handle OMP_CLAUSE.
3699         * tree.c (omp_clause_num_ops): New.
3700         (omp_clause_code_name): New.
3701         (tree_code_size): Handle OMP_CLAUSE.
3702         (tree_size): Likewise.
3703         (make_node): Document handling of OMP_CLAUSE.
3704         (tree_node_structure): Handle OMP_CLAUSE.
3705         (omp_clause_check_failed): New.
3706         (omp_clause_range_check_failed): New.
3707         (omp_clause_operand_check_failed): New.
3708         (build_omp_clause): New.
3709         (walk_tree): Adjust handling of OMP_CLAUSE_* nodes.
3710         * tree.h (enum omp_clause_code): Declare.
3711         (OMP_CLAUSE_SUBCODE_CHECK): Define.
3712         (OMP_CLAUSE_RANGE_CHECK): Define.
3713         (OMP_CLAUSE_ELT_CHECK): Define.
3714         (omp_clause_check_failed): Declare.
3715         (omp_clause_operand_check_failed): Declare.
3716         (omp_clause_range_check_failed): Declare.
3717         (OMP_CLAUSE_CHAIN): Do not use TREE_RANGE_CHECK.
3718         (OMP_CLAUSE_OPERAND): Use OMP_CLAUSE_RANGE_CHECK.
3719         (OMP_CLAUSE_PRIVATE_DEBUG): Use OMP_CLAUSE_SUBCODE_CHECK.
3720         (OMP_CLAUSE_LASTPRIVATE): Likewise.
3721         (OMP_CLAUSE_IF_EXPR): Likewise.
3722         (OMP_CLAUSE_NUM_THREADS_EXPR): Likewise.
3723         (OMP_CLAUSE_SCHEDULE_CHUNK_EXPR): Likewise.
3724         (OMP_CLAUSE_REDUCTION_CODE): Likewise.
3725         (OMP_CLAUSE_REDUCTION_INIT): Likewise.
3726         (OMP_CLAUSE_REDUCTION_MERGE): Likewise.
3727         (OMP_CLAUSE_REDUCTION_PLACEHOLDER): Likewise.
3728         Use tree_node.omp_clause.subcode instead of TREE_COMPLEXITY.
3729         (OMP_CLAUSE_SCHEDULE_KIND): Likewise.
3730         (OMP_CLAUSE_DEFAULT_KIND): Likewise.
3731         (OMP_CLAUSE_CODE): Define.
3732         (OMP_CLAUSE_SET_CODE): Define.
3733         (OMP_CLAUSE_CODE): Define.
3734         (OMP_CLAUSE_OPERAND): Define.
3735         (struct tree_omp_clause): Declare.
3736         (union tree_node): Add field 'omp_clause'.
3737         * treestruct.def (TS_OMP_CLAUSE): Define.
3738         * tree.def (OMP_CLAUSE_PRIVATE, OMP_CLAUSE_SHARED
3739         OMP_CLAUSE_FIRSTPRIVATE, OMP_CLAUSE_LASTPRIVATE,
3740         OMP_CLAUSE_REDUCTION, OMP_CLAUSE_COPYIN,
3741         OMP_CLAUSE_COPYPRIVATE, OMP_CLAUSE_IF,
3742         OMP_CLAUSE_NUM_THREADS, OMP_CLAUSE_SCHEDULE,
3743         OMP_CLAUSE_NOWAIT, OMP_CLAUSE_ORDERED, OMP_CLAUSE_DEFAULT): Remove.
3744         (OMP_CLAUSE): Define.
3745         * print-tree.c (print_node): Handle OMP_CLAUSE.
3746         * omp-low.c: Adapt all uses of OMP_CLAUSE_* nodes.
3747         * c-typeck.c: Likewise.
3748         * gimplify.c: Likewise.
3749         * c-omp.c: Likewise.
3750         * tree-nested.c: Likewise.
3751         * tree-inline.c: Likewise.
3752         * c-parser.c: Likewise.
3753         * gimple-low.c (lower_omp_directive): Do not set TREE_BLOCK on
3754         clauses.
3755
3756 2006-01-25  Roger Sayle  <roger@eyesopen.com>
3757
3758         PR rtl-optimization/25703
3759         * combine.c (try_combine): Handle zero_extract and strict_low_part
3760         of non-lowpart SUBREGs for constant reg_subword_p set optimization.
3761
3762 2006-01-25  Peter Bergner  <bergner@vnet.ibm.com>
3763
3764         * global.c: Fix comment typos.
3765
3766 2006-01-25  Andrew Pinski  <pinskia@physics.uc.edu>
3767
3768         PR target/25758
3769         * config/i386/i386.c (output_pic_addr_const) <case SYMBOL_REF>:
3770         Use output_addr_const instead of assemble_name.
3771
3772 2006-01-25  Paolo Bonzini  <bonzini@gnu.org>
3773
3774         * Makefile.in (sched-vis.o): Update dependencies.
3775         * haifa-sched.c (sched_finish): Clear current_sched_info.
3776         * cfg.c (dump_bb_info): New, split from dump_flow_info.
3777         (dump_flow_info): Call it.
3778         * passes.c (execute_todo): Call print_rtl_slim_with_bb to make
3779         a slim RTL dump.
3780         * basic-block.h (dump_bb_info): Declare.
3781         * tree-dump.c (dump_enable_all): OR the flags of a -fdump-tree-all
3782         option, and apply options only for dump files whose TDF_RTL,
3783         TDF_TREE, or TDF_IPA bits match.
3784         * rtl.h: Declare new functions exported from sched-vis.c.
3785         * sched-vis.c: Enable also if scheduling is not used.
3786         (print_value): Print the mode of registers if not inside scheduling.
3787         (print_insn): Make it work outside the scheduler.  Beautify the output
3788         a bit.
3789         (dump_insn_slim, debug_insn_slim, print_rtl_slim_with_bb): New.
3790
3791 2006-01-25  Richard Sandiford  <richard@codesourcery.com>
3792
3793         * doc/rtl.texi (SYMBOL_REF_CONSTANT, SYMBOL_REF_DATA): Document.
3794         * gengtype.c (adjust_field_rtx_def): Garbage-collect field 2 of
3795         a SYMBOL_REF as either a tree or a constant_descriptor_rtx,
3796         depending on the value of CONSTANT_POOL_ADDRESS_P.
3797         * optabs.c (init_one_libfunc): Nullify SYMBOL_REF_DATA rather than
3798         SYMBOL_REF_DECL.
3799         * varasm.c (make_decl_rtl, build_constant_desc): Set SYMBOL_REF_DATA
3800         rather than SYMBOL_REF_DECL.
3801         (rtx_constant_pool): Remove const_rtx_sym_htab.
3802         (const_desc_rtx_sym_hash, const_desc_rtx_sym_eq): Delete.
3803         (init_varasm_status): Don't initialize const_rtx_sym_htab.
3804         (force_const_mem): Point SYMBOL_REF_DATA to the constant pool entry.
3805         Remove handling of const_rtx_sym_htab.
3806         (find_pool_constant): Delete.
3807         (get_pool_constant, get_pool_constant_mark): Use SYMBOL_REF_CONSTANT
3808         rather than find_pool_constant.
3809         (get_pool_constant_for_function): Delete.
3810         (get_pool_mode, mark_constant): Use SYMBOL_REF_CONSTANT rather than
3811         find_pool_constant.
3812         * rtl.h (rtunion_def): Add rt_constant and rt_ptr fields.
3813         (X0CONSTANT, X0PTR, SYMBOL_REF_DATA): New macros.
3814         (SYMBOL_REF_DECL): Return NULL if CONSTANT_POOL_ADDRESS_P.
3815         (SYMBOL_REF_CONSTANT): New macro.
3816         (get_pool_constant_for_function): Delete.
3817         * config/i386/winnt.c (i386_pe_mark_dllexport): Set SYMBOL_REF_DATA
3818         rather than SYMBOL_REF_DECL.
3819         (i386_pe_mark_dllimport): Likewise.
3820         * config/rs6000/rs6000.c (rs6000_emit_move): Copy SYMBOL_REF_DATA
3821         rather than SYMBOL_REF_DECL.
3822         * config/darwin.c (machopic_indirect_data_reference): Likewise.
3823         (machopic_indirect_call_target): Likewise.
3824
3825 2006-01-25  Eric Botcazou  <ebotcazou@adacore.com>
3826
3827         * flow.c (delete_noop_moves): Add missing EOL to dump message.
3828
3829 2006-01-25  Richard Sandiford  <richard@codesourcery.com>
3830
3831         * genattrtab.c (gen_bypass): Allow bypasses to contain whitespace.
3832
3833 2006-01-25  Kaz Kojima  <kkojima@gcc.gnu.org>
3834
3835         * config/sh/predicates.md (sh_register_operand): Accept CONST_DOUBLE.
3836
3837 2006-01-24  David Daney  <ddaney@avtrex.com>
3838
3839         PR java/25816
3840         * configure.ac (enable_tls): New enable option.
3841         (HAVE_AS_TLS): Don't do assembler check if enable_tls set.
3842         * configure: Regenerate.
3843         * doc/install.texi (--enable-tls): Document new option.
3844         (--disable-tls): Ditto.
3845
3846 2006-01-24  Richard Henderson  <rth@redehat.com>
3847
3848         * alias.h (ALIAS_SET_MEMORY_BARRIER): New.
3849         * alias.c (true_dependence): Respect it.
3850         (canon_true_dependence, write_dependence_p): Likewise.
3851         * builtins.c (get_builtin_sync_mem): Set it.
3852
3853 2006-01-25  Zdenek Dvorak <dvorakz@suse.cz>
3854
3855         * loop-iv.c (iv_analysis_loop_init): Use df analysis in a more
3856         efficient way.
3857
3858 2006-01-24  DJ Delorie  <dj@redhat.com>
3859
3860         * expmed.c (store_bit_field): Don't arbitrarily deny using insv
3861         for storing constants in single-bit bitfields.
3862
3863 2006-01-25  Ben Elliston  <bje@au.ibm.com>
3864
3865         * dfp.c (dfp_byte_swap): Use uint32_t and not unsigned long.
3866
3867 2006-01-24  Andrew Pinski  <pinskia@physics.uc.edu>
3868
3869         PR tree-opt/25860
3870         * tree-ssa-pre.c (phi_translate): Return NULL
3871         for AGGREGATE_TYPE's.
3872
3873 2006-01-24  Zack Weinberg  <zackw@panix.com>
3874
3875         * genautomata.c (process_state_for_insn_equiv_partition):
3876         Use xcalloc for insn_arcs_array.
3877         * vec.h (DEF_VEC_ALLOC_FUNC_I): New set of templates.
3878         (DEF_VEC_ALLOC_I): Use it, not DEF_VEC_ALLOC_FUNC_P.
3879
3880 2006-01-24  Richard Henderson  <rth@redhat.com>
3881
3882         * genextract.c (VEC_safe_set_locstr): Take VEC by reference;
3883         update all callers.
3884
3885 2006-01-23  Paolo Bonzini  <bonzini@gnu.org>
3886
3887         PR rtl-optimization/25890
3888         PR rtl-optimization/25905
3889         * combine.c (expand_compound_operation, expand_field_assignment):
3890         Fail if the bitfield's final position is out of bounds.
3891
3892 2006-01-24  Ian Lance Taylor  <ian@airs.com>
3893
3894         PR middle-end/25930
3895         * cgraphunit.c (cgraph_output_in_order): Don't clear
3896         cgraph_asm_nodes until after asm strings have been output.
3897
3898 2006-01-23  Adam Nemet  <anemet@caviumnetworks.com>
3899
3900         * fix-header.c (read_scan_file): Add new parameter imultilib when
3901         calling register_include_chains.
3902
3903 2006-01-23  Diego Novillo  <dnovillo@redhat.com>
3904
3905         * omp-low.c: Update documentation.
3906
3907 2006-01-23  Andrew Pinski  <pinskia@physics.uc.edu>
3908             Daniel Berlin  <dberlin@dberlin.org>
3909
3910         PR tree-opt/25315
3911         PR tree-opt/25857
3912         * tree-ssa-pre.c (insert_extra_phis): If an incomming edge is abnormal
3913         return from the function.
3914
3915 2006-01-22  Zack Weinberg  <zackw@panix.com>
3916
3917         * rtl.def (match_code): Add second argument.
3918         * genpreds.c (write_extract_subexp): New function.
3919         (write_match_code): Add path argument.  Use write_extract_subexp.
3920         (write_predicate_expr): Pass path to write_match_code.
3921         (mark_mode_tests): MATCH_CODE applied to a subexpression does
3922         not perform a mode test.
3923         * genrecog.c (compute_predicate_codes): MATCH_CODE applied to
3924         a subexpression does not constrain the top-level code set.
3925         * read-rtl.c (read_rtx_variadic): New function.
3926         (read_rtx_1): Use it; allow AND and IOR to be variadic.
3927         * doc/md.texi: Document new notation.
3928         * config/i386/predicates.md (cmpsi_operand_1): Fold into ...
3929         (cmpsi_operand): ... here, using new notation.
3930
3931 2006-01-22  Zack Weinberg  <zackw@panix.com>
3932
3933         * varray.c: Remove GENERATOR_FILE #ifdefs.
3934
3935 2006-01-22  Zack Weinberg  <zackw@panix.com>
3936
3937         * genautomata.c (output_reserved_units_table): Emit nothing if
3938         description->query_units_num is zero.  Remove extra blank line.
3939         (output_cpu_unit_reservation_p): Short circuit
3940         if description->query_units_num is zero.
3941
3942 2006-01-22  Zack Weinberg  <zackw@panix.com>
3943
3944         * genattrtab.c: Don't include genattrtab.h.  Define ATTR_NONE
3945         and ATTR_SPECIAL (from genattrtab.h).  Don't define num_dfa_decls
3946         nor any of the random handful of variables that used to be necessary
3947         when this program was linked with rtlanal.o.  Prune set of forward
3948         function declarations.
3949         (struct attr_desc): Remove static_p field.
3950         (hash_obstack, temp_obstack, attr_hash_table, attr_printf)
3951         (check_attr_test, make_internal_attr, make_numeric_value): Make static.
3952         (attr_string): Do not read the character one past the length of
3953         the string.
3954         (write_attr_get, find_attr, make_internal_attr): Don't touch static_p.
3955         (struct insn_reserv, all_insn_reservs, last_insn_reserv_p)
3956         (n_insn_reservs, gen_insn_reserv, struct bypass_list, all_bypasses)
3957         (n_bypasses, gen_bypass_1, gen_bypass, process_bypasses)
3958         (make_automaton_attrs): New.
3959         (main): Do not call into genautomata.  Call local gen_bypass
3960         and gen_insn_reserv as appropriate.  Call make_automaton_attrs.
3961         Remove special case for insn_alts.
3962         * genautomata.c: Include gensupport.h; not genattrtab.h nor
3963         varray.h (leftover from previous change).  Prune set of forward
3964         function declarations.  Remove state_alts fields from all
3965         structures.  Remove state_alts_table from struct automaton.
3966         Make everything except main static.  Do not maintain num_dfa_decls.
3967         Do not maintain state_alts fields of various structures.
3968         (process_decls): Don't validate condexp for dm_insn_reserv decls.
3969         (add_arc): Remove state_alts argument.  All callers updated.
3970         (output_reserved_units_table): Emit #ifdef here...
3971         (output_tables): ...not here.  Don't generate state_alts tables.
3972         (expand_automata): Don't generate attributes.
3973         (write_automata): Don't generate state_alts functions.
3974         (main): New function.
3975         (it_is_empty_reserv_sets, output_state_alts_full_vect_name)
3976         (output_state_alts_comb_vect_name, output_state_alts_check_vect_name)
3977         (AUTOMATON_STATE_ALTS_MACRO_NAME, INTERNAL_STATE_ALTS_FUNC_NAME)
3978         (STATE_ALTS_FUNC_NAME, INSN_DEFAULT_LATENCY_FUNC_NAME)
3979         (BYPASS_P_FUNC_NAME, output_state_alts_table)
3980         (output_automata_list_state_alts_code, output_internal_state_alts_func)
3981         (output_state_alts_func, make_insn_alts_attr, make_bypass_attr)
3982         (make_internal_dfa_insn_code_attr, make_default_insn_latency_attr):
3983         Delete.
3984         * genattr.c: Declare internal_dfa_insn_code in insn-attr.h.
3985         * genattrtab.h: Delete file.
3986         * Makefile.in (OBJS-common): Add&nb